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Thermodynamic Properties
of Minerals and Related
Substances at 298.15°K (25.0°C)
and One Atmosphere (1.013 Bars)
Pressure and at
Higher Temperatures

bd

82
GEOLOGICAL

SURVEY

BULLETIN

ORTON MEMORIAL LIBRARY

i: '£ OHIO STATE UWVEHSITY

CO

a

I
to

Or

JUN 1 6 2000

1259

Thermodynamic Properties
of Minerals and Related
Substances at 298.15°K (25.0°C)
and One Atmosphere (1.013 Bars)
Pressure and at
Higher Temperatures
By RICHARD A. ROBIE ajid DAVID R. WALDBAUM

GEOLOGICAL

SURVEY

BULLETIN

1259

A summary of the thermodynamic data for
minerals at 298.15°K together with calculated
values of the functions AH°f,T, AGI,T, ST,
and (Gr H^.s/T) at temperatures up to
2,000°K

ORTON MEMORIAL LIBRARY
THE OHIO STATE UNIVERSITY
155 S. OVAL DRIVE

UNITED STATES GOVERNMENT PRINTING OFFICE, WASHINGTON : 1968

UNITED STATES DEPARTMENT OF THE INTERIOR

WALTER J. HICKEL, Secretary

GEOLOGICAL SURVEY
William T. Pecora, Director

Library of Congress catalog-card No. OS 68-223

First printing 1968
Second printing 1970

For sale by the Superintendent of Documents, U.S. Government Printing OflBlce
Washington, D.C. 20402 - Price $1.25 (paper cover)

CONTENTS
Page

Abstract _____________________________________
Introduction ___________________________________...
Acknowledgments ________________________________
Physical constants and atomic weights ________________
Reference states and transitions _________,______________
Sources of data ___________,________________,______
Methods of calculation ______________________________
Thermodynamic properties at 298.15°K ___________________
Thermodynamic properties at high temperatures ______________
References and notes _______________________________
Index of names ___________________________________
Index of formulas ________________________________

1
1
2
3
5
5
8
11
26
238
249
253

TABLES
Page

TABLE 1. Symbols and constants __________________
2. Atomic weights for 1963 _____________________
3. Chronological list of important critical summaries of
thermodynamic data for inorganic substances _______.

3
4
6

THERMODYNAMIC PROPERTIES OF MINERALS AND
RELATED SUBSTANCES AT 298.15°K (25.0°C) AND
ONE ATMOSPHERE (1.013 BARS) PRESSURE
AND AT HIGHER TEMPERATURES

By RICHARD A. ROBIE and DAVID R. WALDBAUM
ABSTRACT

Critically selected values for the entropy (S°288.«), molar volume (VWw),
and for the heat and Gibbs free energy of formation (AH 0 f,z98.i5 and
AG°f.288.is) are given for 50 reference elements and 285 minerals and related
substances. For 211 materials for which high-temperature heat-capacity or heat-content data are available AH°f,T, AG°f,T, S°T, logKf/r and
(G°T H°298.i5/T) are tabulated at 100°K intervals for temperatures up
to 2,000°K. For substances having solid-state phase changes or whose melting or boiling point is less than 2,000°K, we also have tabulated the properties listed above at the temperature of the phase change so that the heat
or entropy changes associated with the transformation form an integral
part of the high-temperature tables.
INTRODUCTION

The purpose of these tables is to present a critical summary of
the available thermodynamic data for minerals and related substances in a convenient form for the use of earth scientists. To
make the tables as useful as possible we have tried to include as
much of the necessary auxiliary data as possible so that a single
set of tables would suffice for most calculations, to insure internal
consistency and to provide for the means of rapid revision and
expansion as new data become available.
This compilation is divided into two sections. In the first section
we give values for the entropy (S°288.i5 ), molar volume (V°298.K ),
the heat (enthalpy, AH°f.298.i5 ) and Gibbs free energy (AG0f,288.15 ),
and the logarithm of the equilibrium constant of formation (log
Kf, 298.15) for the reference elements, minerals, a number of oxides,
and other substances of geological interest. The data have been
critically evaluated and uncertainties assigned to the 298.15°K
properties. The sources of data are indicated numerically in the
tables and listed in complete form following the tables.

2

THERMODYNAMIC PROPERTIES OF MINERALS

The data are arranged in order of their conventional mineralogical groups. Within each group (for example the oxides)
the listing is by alphabetical order of the chemical symbol of the
principal cation.
The tables in the second section contain values for the
high-temperature thermodynamic properties, H°T H°ns.u,
(G°T -H°298.iS )/T, S°T, AG°f,T, AH°,,T, and log Kf,T at 100°K intervals up to 2000°K. Heat-capacity data, as such, have been omitted
from these tables in favor of the function H°T H 0298.i5 which is
the quantity actually measured in most high-temperature experiments. Heat capacities, CP, derived from H°T H°298.i5 data are at
best only approximate and their use should be avoided when
possible. Approximate values for CP are readily obtained from
the first differences of the tabulated H°T H 0298.i5 function.
Thermodynamic properties of gases at high pressures have not
been included in these tables. High pressure-high temperature
functions of the geologically important gases H20 and C02 are
given by Bain (1964), Hilsenrath and others (1955), and Robie
(1966).
These tables entirely supersede two earlier reports on the same
subject matter by Robie (1959,1966)!
ACKNOWLEDGMENTS

Professor E. F. Westrum, Jr., University of Michigan, Professor 0. J. Kleppa, University of Chicago, and P. B. Barton, Jr.,
Priestley Toulmin, and D. R. Wones, U.S. Geological Survey, have
kindly permitted us to use some of their unpublished data. We are
particularly grateful to Keith Beardsley of the U.S. Geological
Survey who wrote the computer routines for processing the
298.15°K tables and the bibliography. E-an Zen of the U.S. Geological Survey and Professor J. B. Thompson, Jr., of Harvard
University offered many helpful suggestions for improving the
clarity and usefulness of these tables.
Computer facilities at the Massachusetts Institute of Technology
were used initially to develop the program for compiling hightemperature thermodynamic functions. More recent revisions of
the program and the present set of tables were prepared at the
Harvard Computing Center, with computer costs supported by
the Higgins Fund and the Committee on Experimental Geology
and Geophysics of Harvard University.

THERMODYNAMIC PROPERTIES OF MINERALS

3

PHYSICAL CONSTANTS AND ATOMIC WEIGHTS

The symbols and constants adopted for this report are listed in
table 1. Values for the physical constants used in the calculations
were those recommended by the National Academy of ScienceNational Research Council (U.S. Natl. Bur. Standards Tech. News
Bull., v. 47, p. 175-177, 1963). For convenience we also give
values of the international atomic weights for 1963 (scale
C12 = 12.0000) in alphabetical order by their chemical symbol in
table 2. Elements for which no atomic weight is listed have no
stable isotope.
T
gfw
H° -H°
T

S°
G° -H°
T

TABLE 1. Symbols and constants
Temperature in degrees Kelvin, (°K)
Gram formula weight
Enthalpy at temperature T relative to 298.15°K in cal gfw 1 ,
Entropy at temperature T in cal deg-gfw" 1

SM.15

m

Gibbs free energy function in cal deg-gfw" 1

A^f°

Heat of formation from reference state in cal gfw" 1

AG°

Gibbs free energy of formation from reference state in cal
gfw"1

Kr
Cp
0

Equilibrium constant of formation
Heat capacity at constant pressure in cal deg-gfw" 1
Superscript indicates the substance is in its standard state

» TTO

meit

Heat of melting at one atmosphere in cal gfw" 1

AH°
"p
V°
"* "
R

Heat of vaporization to ideal gas at one atmosphere at the
normal boiling point in cal gfw" 1
Volume of one gram formula weight at one atmosphere and
298.15°K in cm8
Gas constant, 1.98717 ±.00030 cal deg-gfw 1, 8.31469 joules
deg-gfw" 1

cal
A

Calorie, unit of energy, 4.1840 absolute joules, 41.2929 cm*
atmosphere
Avogadro's number, (6.02252 ±. 00028) xlO23 formula ' units

P
atm
bar
log
In

Pressure, either in atmosphere or bars
Atmosphere, 1,013,260 dynes cm"*
Bar, 1,000,000 dynes cm"2
Common logarithm, base 10
Natural logarithm, base e= 2.71828. . .

gfw1

THERMODYNAMIC PROPERTIES OF MINERALS
TABLE 2. Atomic weights for 1963
Element

Symbol
Ac
A.
X

Elements
0-Tin
Sn (White)

118.69

Strontium
Sr

87.62

Sr
aqueous ion
Std. state, m 1

87.62

12.32
± .06

16.289
± .005

0

0

0.000

68
159

68

12.5

33.921
±,.020

0

0

.000

68

68

-133200
±
200

97.638
± .147

± .5

141

Tellurium
Te

127.60

11.88
± .10

20.476
± .008

0

0

.000

158
68

68

Thorium
Th

232.038

12.76
± .20

19.788
± .010

0

0

.000

68

68

Titanium
Ti

47. 90

7.32
±.02

10.631
± .010

0

0

.000

68

68

Uranium
U

238.03

12.00
± .03

12.497
± .020

0

0

.000

68

68

U
aqueous ion
Std. state, m « 1

236.03

-124400
±
200

91.188
± .147

141

238.03

-138400
±
200

101.450
± .147

141

0

.000

U"1"1"1"1" aqueous ion
Std. state-, m « 1
Vanadium
V

50. 942

6.91
±. 10

8.350
±.004

V++ aqueous ion
Std. state, m « 1

50. 942

54200
± 200

-39. 730
± .147

42

V 1 ' ' aqueous ion
Std. state, m * 1

50.942

-60100
± 200

44.054
± . 147

42

0

68

68

183.85

7.80
±.10

9.545
±.004

0

0

.000

68

68

Zinc
Zn

65.37

9.95
±.05

9.162
±.007

0

0

.000

68

68

Zn"1"1" aqueous ion
Std. state, m 1

65.37

-35184
±
50

25.791
± .037

Zirconium
Zr

91.22

9.31
±.04

0

0

.000

148
31

Ammonia
NH, (Weal gas)

17.031

45.97
± .05

-11020
± 100

-3945
± 110

2.892
±.081

158
148

-18970
t
50

13.905
± .037

-17880
±
80

-12127
±
90

8.889
±.066

158

158

148

5960
±320

4759
±410

-3.488
± .301

68

162
68

68

74

Tungsten (Wolfram)
W

14.016
± .007
24465.0
3.4

141
148

158

148

U

If

NH^
aqueous ion
Std. state, m » 1

18.039

Methane
CH4 (Ideal gas)

16.043

44.49
± .05

179.552

24.96
± .80

Cementite
Fe 3C

24465.0
t
3.4
23.23
± .05

158

Sulfides, arsenides, tellurides, selenides, and sulphosalts
Acanthite
Ag2S III

247.804

34.14
± .10

34.19
± .04

-7731
± 210

-9562
± 200

7.009
±.147

52

47
139'

Realgar
AsS

106.986

15.18
± .15

29.80
± .24

-17050
± 500

-16806
± 510

12.319
± .374

173

158

Orpiment
A8 2 S 3

246.035

39.1
± .7

70.51
± .25

-40400
± 1000

-40250
± 1050

29.504
± . 770

138

158

Bismuth inite
Bi2 S 3

514.152

47.9
± .8

75.52
± .04

-33900
± 250

-33298
± 200

24.408
± .147

138

15

PROPERTIES AT 298.15°K

Name and formula

Oldhamite
CaS

Gram
formula
weight

Entropy
S o 298.1.',
(cal deggfw ')

References

Molar
volume

AH

/.29».H

(calgfw' ') (cal gfw ')

Log
KMM.if,

Sulfides, arsenides, tellurides, selenides, and sulphosalts
72. 144
13.54
27.72
-114265
-113070
82.882
± .30
±
510
± .09
±
500
± .367

I

i
'i

b *.
-i . z

78

128

144.464

16.80
± .40

29.934
± .015

-35755
± 300

-34807
± 330

25. 514
± .242

78

2

38

95.604

15.93
± .40

20.42
± .02

-11610
± 1000

-11720
± 1010

8.591
±. 740

78

38

73

159.144

28.86
± .50

27.475
± .016

-19148
± 300

-20734
± 340

15.198
± .249

78
160

20
127

74

Troilite
FeS

87.911

14.42
± .04

18.20
± .03

-24130
± 350

-24219
± 360

17. 753
± .264

53

133
2

74

Pyrrhotite
F6 .877 S

81.042

14.53
± .05

17.58
± .03

119.975

12.65
± .03

23.940
± .007

154

74

Ferroselite
FeSe 2

213. 767

20. 76
± .06

29.96
± .05

52

Frohbergite
FeTe 2

311.047

23.94
± .03

38.43
± .05

52

Hydrogen sulfide
H 2 S (Ideal gas)

34.080

49.16
± .05

148

HS aqueous ion
Std. state, m « 1

33.072

Greennockite
CdS
Covellite
CuS
Chalcocite
Cu 2 S III

Pyrite
FeS,

24465.0
t
3.4

53

-41000
± 400

-4930
± 150

-38296
± 410

28.072
± .301

52

-8016
± 160

5. 876 158
±.117

158

-2880
± 200

2.111
±.147

158

Cinnabar
HgS (Red)

232.654

19. 72
± .50

28.416
± .015

-13900
± 500

-12096
± 530

8.867
±.389

88

73

Metacinnabar
HgS (Black)

232.654

23.0
±1.0

30.169
± .016

-11170
± 360

-10344
± 200

7.582
±.147

78

46

87.002

18.69
± .40

21.46
± .01

-51115
± 200

-52140
± 240

38.220
± .176

78

2
30

160.068

14.96
± .05

32.02
± .02

-73200
± 200

-71086
± 210

52.107
± .154

52

38
147

90. 774

15.80
±1.00

16.89
± .01

-20284
± 1000

-20600
± 1050

15.100 52
± .770 173

140

74

Galena
PbS

239.254

21.84
± .30

31.49
± .01

-23353
± 230

-22962
± 200

16.832
± .147

78

146
92

74

Clausthalite
PbSe

286.15

24.48
± .50 .

34.61
± .01

-24662
± 530

-24300
± 500

17.812
± .367

78

159

Altaite
PbTe

334.79

26.26
± .50

40.60
± .01

-16949
± 340

-16600
± 300

12.168
± .220

78

141
159

Cooperite
PtS

227.154

13.16
± .03

22.15
± .01

-19700
± 800

-18391
± 810

13.481
± .594

52

52

Stibnite
Sb 2S 3

339.692

43.5
± .8

73.41
± .04

-41800
± 1000

-41460
± 1010

30.391
± . 740

89

158

Herzenbergite
SnS

150.754

18.36
± .20

29.01
± .02

-25464
± 350

-24999
± 360

18.325
± .264

78

133

Tungstenite

247.978

22. 7
±2.0

32.07
± .02

-71300
± 200

-71210
± 640

52.198
± .469

52

38

Sphalerite
ZnS

97.434

13.77
± .20

23.83
± .01

-49750
± 500

-48623
± 510

35.642
± .374

78

38
126

123

Wurtzite
ZnS

97.434

16.56
±1.00

23.846
± .013

-46095
± 200

-45760
± 300

33.543 132
± .220

2

123

Alabandite
MnS
Molybdenite
MoS2
Millerite
NiS

ws2

38

74

74

THERMODYNAMIC PROPERTIES OF MINERALS

Name and formula

Corundum
A1 2°3

Gram
formula
weight

101.961

Entropy
S 0 ,,,,,,..,
(cal deggfw "' )

lefercnc

Molar
volume
(cnV1 )

AHV-..!.» I.-,
(calgfw ') (cal gfw' 1 )

Log
K,., , .,,

'.: o '-' r

x

i

b

X

Ox des and hyd roxides
25.575
-400400
12.18
± .007 ±
± .03
300

-378082
±
310

277.141
± .227

78
39

103

39

-217674
± 3510

159.559
± 2.573

78

141

74

74

Boehmite
AIO(OH)

59.988

11.58
± .05

19.535
± .020

-235500
± 3500

Diaspore
AIO(OH)

59. 988

8.43
±.04

17. 760
± .026

Gibbsite
A1(OH) 3

78.004

16. 75
± .10

31.956
± .015

-306380
±
300

-273486
±
310

200.470
± .227

78

12

86
78

Arsenolite
AS 2°3

197.841

25.6
± .5

51.118
± .069

-157020
±
400

-137731
±
450

100.959
± .330

158

158

Claudetite
AS 2°3

197.841

28.0
±1.0

47.26
± .03

-156483
±
300

-137910
±
250

101.091
± .183

158

158

69.620

12.90
± .10

27.22
± .06

-303640
±
400

-284729
±
410

208.712
± .301

148
159

148
159

148

16.8
± .3

25.588
± .010

-139060
±
700

-131994
±
770

96. 754
± .564

78

108

74

8.309
±.003

-143100
±
150

-136121
±
160

99. 779
± .117

78
148

22
66

157

-137160
±
300

-117955
±
350

86.463
± .257

158

105
158

74

Boric Oxide
B2°3
Barium Oxide
BaO
Bromellite
BeO
Bismite

153.339
25.012

465.958

3.37
±.02
36.2
± .5

49. 73
± .06

Carbon Monoxide
CO (Ideal gas)

28.011

47.219 24465.0
± .010 ±
3.4

-26416
±
20

-32781
±
30

24.029
± .022

158

158

148

Carbon Dioxide
CO- (Ideal gas)

44.010

51.06
± .01

24465.0
±
3.4

-94051
±
30

-94257
±
40

69.092
± .029

158
58

158

148

6

COl aqueous ion
Std. state, m 1

60.009

-126170
±
150

92.485
± .110

158

HCOo aqueous ion
Std. state, m » 1

61.017

-140260
±
150

102,813
± .110

158

H-CO, un-ionized
Std. state, m « 1

62.025

-148940
±
50

109.176
± .037

158

Lime
CaO

56.079

Portlandite
Ca(OH) 2

9.5
±.5

16.764
± .005

-151790
±
300

-144352

105.813

±

±

74.095

19.93
± .10

33.056
± .016

-235610
±
450

-214673
±
460

Monteponite
CdO

128.399

13.1
± .3

15.585
± .010

-61200
± 200

Cerianite
CeO2

172.119

14.89
± .02

23.853
± .026

74.933

12.66
± .08

Eskolaite
Cr2°3

151.990

Tenorite
CuO
Cuprite
Cu2O

Cobalt
CoO

Oxide

Wustite
Fe .947°

78

65

74

157.359
± .337

78

54
55

74

-54111
± 220

39.664
± .161

78

102

-260180
±
350

-245450
±
700

179.920
± .513

179

64

84

11.64
± .02

-57100
± 300

-51430
± 310

37.699
± .227

78

18

74

19.4
± .3

29.090
± .032

-272700
±
400

-253203
±
420

185.603
± .308

78

102

74

79.539

10.19
± .05

12.22
± .03

-37140
± 300

-30498
± 310

22.356
± .227

78

15

74

143.079

22.4
± .4

23.437
± .016

-40400
± 1500

-35022
± 1510

25.672
±1.107

78

22

74

68.887

13.76
± .10

12.04
± .04

-63640
± 200

-58599
± 210

42. 954
± .154

78
148

70
148

74

340

.249

PROPERTIES AT 298.15°K

Name and formula

Gram
formula
weight

Entropy
S o 298.1 5
(cal deggfW')

tleferenc cs

Molar
volume AH 0,.,.,.,,
(cm") (cal gfw" 1 ) (cal gfw "')

Log
K/.29H.I 5

°x

b

^.

Oxides and hydroxides
Ferrous Oxide
FeO (Fictive)

71.846

12.00

14.52
± .40

± .05

-65020
± 500

-60097
± 600

44.052
± .440

148

148

148

Hematite
Fe 2°3

159.692

20.89
± .05

30.274
± .012

-197300
±
300

-177728
±
310

130.278
± .227

51
148

26
148

74

Magnetite
Fe 3°4

231.539

36.03
± .10

44.524
± .008

-267400
±
500

-243094
±
510

178.193
± .374

52

70
148

74

Goethite
o-FeO(OH)

88.854

20.82
± .04

-133750
±
250

10

104.589

13.21
± .10

24.44
± .02

-129080
±
130

-116195
±
140

85.173
± .103

78

109

Water
H2 O (Liquid)

18.015

16.71
± .03

18.069
± .003

-68315
±
10

-56688
±
20

41.553
± .015

158

158

OH"

17.007

-37594
±
10

27.557
± .007

Germanium Dioxide
GeO 2 (Quartz form)

aqueous ion

Std. state, m » 1

74

158

Steam
H 20 (Ideal gas)

18.015

45.104 24465.0
± .010 ±
3.4

-57796
±
10

-54635
±
20

40.048
± .015

158

158

Ice
HO (Metastable)

18.015

10.68
± .10

19.64
± .01

-66879
±
50

-53455
±
60

39.184
± .044

78

141

Hafnia
Hf0 2

210.489

14. 18
± .10

20.823
± .008

-266050
±
300

-252566
±
310

185.136
± .227

78

22

74

Montroydite
HgO

216.589

16.80
± .08

19.32
± .02

-21711
±
90

-13998
± 100

10.261
± .073

78

22

74

Potassium Oxide
K20

94.203

22.5
±1.5

40.38
± .20

-86800
± 500

-76974
± 680

56.423
± .498

148

148

148

Lithium Oxide
Li20

29.877

8.98
±.02

14.76
± .01

-143100
±
500

-134329
±
510

98.466
± .374

148

148

148

Periclase
MgO

40.311

6.44
±.04

11.248
± .004

-143800
±
100

-136087
±
110

99. 754
± .081

14
120

22
148

157

Brucite
Mg(OH) 2

58.327

15.09
± .05

24.63
± .07

-221200
±
700

-199460
±
730

146.208
± .535

78

150
63

74

Manganosite
MnO

70.937

14.27
± .10

13.221
± .004

-92050
± 110

-86720
± 120

63. 567
± .088

78

22

74

Pyrolusite
Mn0 2

86. 937

12.68
± .10

16.61
± .02

-124450
±
200

-111342
±
210

81.616
± .154

78

22

74

Bixbyite
Mn 2°3

157.874

26.40
± .50

31.37
± .05

-228700
±
500

-210097
±
530

154.005
± .389

78

118
22

74

Hausmanite
Mn 3°4

228.812

36.8
±1.0

46.95
± .06

-331400
±
400

-306313
±
500

224. 533
± .367

118

22

74

Molybdite
MoO 3

143.938

18.58
± .10

30.56
± .04

-178160
±
100

-159745
±
110

117.096
± .081

78

103

74

Nitrogen Dioxide
NO2 (Ideal gas)

46.005

57.35
± .02

7930
±100

12262
± 110

-8.988
± .081

158

158

148

NOj aqueous ion
Std. state, m « 1

62.005

-26610
± 200

19.506
± .147

Sodium Oxide
Na 2°

61.979

17.99
± .20

-99400
± 1500

-90161
± 1510

66.090
±1.107

50

22 148

Bunsenite
NiO

74. 709

9.08
±.04

-57300
± 100

-50574
± 110

37.072
± .081

78

18

24465.0
t
3.4

10.97
± .02

148

158

74

THERMODYNAMIC PROPERTIES OF MINERALS

Name and formula

Gram
'ormula
weight

Entropy
S o 298.15
(cal deggfw-')

M*

1References
Molar
volume

AH°/.298.I5 AG°/.298.15

(cm a )

(cal gfw"1 ) (cal gfw" 1 )

Log
K^,298.15

I
<3

/)

0\ i


<

< i

Sheet structure silicates
Die kite
Al 2 Si20 5 (OH) 4

258.161

47.10
± .30

99.30
± .07

-979165
±
900

-902142
±
910

661.287
± .667

86

12

Kaolinite
A1 2 Si 2°5 (OH) 4

258.161

48.53
± .30

99. 52
± .26

-979465
±
950

-902868
±
960

661.819
± . 704

86

12
91

Halloysite
A1 2 Si2°5 (OH) 4

258.161

48.6
± .3

99.3
±1.0

-974995
±
900

-898419
±
910

658.558
± .667

86

12

Muscovite
KAl 2 [AlSi 30 1Q](OH) 2

398.313

69.0
± .7

140.71
.18

-1421180
±
1300

-1330103
±
1320

974.991
± .968

177

9
125

119

Phlogopite
KMg 3 [AlSi 30 1Q](OH) 2

417.286

76.4
±1.0

149.91
± .36

Fluor- Phlogopite
KMg 3 [AlSi 30 10]F 2

421.268

75.90
± .50

146.37
± .18

-1522020
±
1200

-1439522
±
1210

1055.197
±
.887

.78

77

74

Talc
Mg 3 Si40 10(OH) 2

379.289

62.34
± .15

136.25
± .26

-1415205
±
1710

-1324486
±
1720

970.873
± 1.261

137

8
137

137

Chrysotile
Mg 3 [Si 205 ](OH) 4

277.134

108.5
± .6

-1043180
±
1000

132

83

THERMODYNAMIC PROPERTIES OF MINERALS

26

SILVER (REFERENCE STATE)
Ag:

GRAM FORMULA WEIGHT

107.870

Face-centered cubic crystals 298.15° to melting point 1234°K.
Liquid 1234° to 2000°K.
FORMATION FROM THE ELEMENTS

T
C II D
i cnr«

nU

.U
n

OEG K

T 298
(KCAL)

f 1*
16

S

_LJ
n

T
T 298
(CAL/DEG-GFW)

1i ft
/T

ENTHALPY
FREE ENERGY
(KCAL/GFW)

LOG K

298.15 0.000
UNCERTAINTY

10.200
0.050

10.2CO
0.050

0.000

0.000

0.000

400
500
600
700
800
900
1000

0.625
1.245
1.885
2.535
3.195
3.880
4.585

12.010
13.390
14.550
15.560
16.440
17.250
17.990

10.447
10.9CO
11.408
11.939
12.446
12.939
13.405

.000
.000
.000
.000
.000
.000
.000

.000
.000
.000
.000
.000
.000
.000

.000
.000
.000
.000
.000
.000
.000

1100
1200
1234
1234
1300
1400
1500

5.310
6.060
6.315
9.170
9.650
10.380
11.110

18.680
19.330
19.540
21.850
22.230
22.770
23.270

13.853
14.280
14.420
14.420
14.807
15.356
15.863

.000
.000
.000
.000
.000
.000
.000

.000
.000
.000
.000
.000
.000
.000

.000
.000
.000
.000
.000
.000
.000

1600
1700
1800
1900
2000

11.840
12.570
13.300
14.030
14.760

23.750
24.190
24.610
25.000
25.380

16.350
16.796
17.221
17.616
18.0CO

.000
.000
.000
.000
.000

.000
.000
.000
.000
.000

.000
.000
.000
.000
.000

MELTING POINT
HEAT OP FUSION
H

-H
298

1234

DBG K

2.855 KCAL
1.3730 KCAL

BOILING POINT
HEAT OF VAPOR.
MOLAR VOLUME

2437

OEG K

60.780 KCAL
0.24551 CAL/BAR

0

TRANSITIONS IN REFERENCE STATE ELEMENTS

68
158

COMPILED
6-13-66

PROPERTIES AT HIGH TEMPERATURES

27

GRAM FORMULA HEIGHT

ALUMINUM (REFERENCE STATE)

26.981

:=====a=========x=========a==

Al:

Face-centered cubic crystals 298.15° to melting point 933°K.
Liquid 933° to 2000°K.
un

T
CUD
T tHr»

H

DEG K

T 298
(KCAL)

FORMATION FROM THE ELEMENTS
S

(G -H
)/T
T
T 298


298.15 0.000
UNCERTAINTY

-(G -H
)/T
T
T
298
(CAL/DEG-GFVO

5.650
0.050

5.650
0.050

ENTHALPY
FREE ENERGY
(KCAL/GFW)
0.000

LOG K

0.000

0.000

,000
,000
,000
,000
,000
,000
,000

,000
,000
,000
,000
,000
,000
,000

400
500
600
700
800
900
1000

0.591
1.213
1.871
2.558
3.270
4.000
4.752

7.350
8.740
9.940
11.COO
11.950
12.610
13.600

5.872
6.314
6.822
7.346
7.862
8.366
8.848

1100
1200
1300
1500

5.538
6.362
7.233
8.142
9.088

14.350
15.070
15.760
16.430
17.090

9.315
9.768
10.196
10.614
11.031

,000
,000
,000
.000
,000

,000
,000
,000
,000
,000

,000
,000
,000
,000
.000

1600
1700
1800
1900
2000

10.080
11.114
12.188
13.303
14.449

17.730
18.350
18.970
19.570
20.160

11.430
11.812
12.199
12.568
12.935

,000
,000
,000
,000
,000

,000
,000
,000
,000
,000

,000
,000
,000
,000
,000

MELTING POINT
HEAT OF FUSION
H

-H
298

2130

DEG K

4.047 KCAL
0.9700 KCAL

BOILING POINT

HEAT OF VAPOR.
MOLAR VOLUME

2945

DEG K

82.283 KCAL
0.17283 CAL/BAR

0

TRANSITIONS IN REFERENCE STATE ELEMENTS

REFERENCES

68

68

COMPILED
3-31-67

PROPERTIES AT HIGH TEMPERATURES
COPPER (REFERENCE STATE)

Cu:

43

GRAM FORMULA WEIGHT

63.540

Face-centered cubic crystals 298.15° to melting point 1356°K.
Liquid 1356° to 2000°K.

s

TPMD
! cnr

T 298
(KCAL)

DEC K

298. 15 0.000
UNCERTAINTY

-< b
P

LJ

~H

T
T 298
(CAL/DEG-GFW)

\ J "*

t f

r

FORMATION FRGM THE ELEMENTS
ENTHALPY
FREE ENERGY
(KCAL/GFW)

LOG K

7.970
0.040

7.970
0.040

0.000

0.000

0.000

400
500
600
700
800
900
1000

0.600
1.215
1.845
2.480
3.130
3.800
4.490

9.700
11.070
12.220
13.2CO
14.070
14.860
15.580

8.2CO
8.640
9.145
9.657
10.157
10.638
11.090

.000
.000
.000
.000
.000
.000
.000

.000
.000
.000
.000
.000
.000
.000

.000
.000
.000
.000
.000
.000
.000

1100
1200
1300
1357
1357
1400
1500

5.190
5.895
6.615
7.040
10.160
10.480
11.230

16.250
16.870
17.440
17.760
20.060
20.290
20.810

11.532
11.957
12.352
12.572
12.572
12.8C4
13.323

.000
.000
.000
.000
.000
.000
.000

.000
.000
.000
.000
.000
.000
.000

.000
.000
.000
.000
.000
.000
.000

1600
1700
1800
1900
2000

11.980
12.730
13.480
14.230
14.980

21.290
21.740
22.170
22.580
22.960

13.803
14.252
14.681
15.091
15.470

.000
.000
.000
.000
.000

.000
.000
.000
.000
.000

.000
.000
.000
.000
.000

MELTING POINT
HEAT OF FUSION
H

-H
298

1356.6

OEG K

3.120 KCAL
1.2C10 KCAL

BOILING POINT
HEAT OF VAPOR.
MOLAR VOLUME

2846

OEG K

72.610 KCAL
0.17000 CAL/BAR

0

TRANSITIONS IN REFERENCE STATE ELEMENTS

REFERENCES

68

68
114

COMPILED
4-15-67

THERMODYNAMIC PROPERTIES OF MINERALS

44
FLUORINE

F,:

(REFERENCE STATE)

GRAM FORMULA WEIGHT

37.997

Ideal diatomic gas 298.15° to 2000°K.

FORMATION FROM THE ELEMENTS
TEMP.

H -H
T 298
(KCAL)

DEG K

S

-(G -H
)/T
T
T 298
(CAL/DEG-GFfc)

ENTHALPY
FREE ENERGY
(KCAL/GFW)

LOG K

29Q. 15 0.000
UNCERTAINTY

48.440
O.C50

48.440
0.050

0.000

0 .000

0.000

400
500
600
700
fiOO
900
1000

0.784
1.591
2.423
3.274
4.140
5.016
5.901

50.7CO
52.498
54.015
55.327
56.482
57.514
58i446

48.740
49.316
49.9,77
50.650
51.307
51.941
52.545

.000
.000.000
.000
.000
.000
.000

.000
.000
.000
.000
.000
.000
.000

.000
.000
.000
.000
.000
.000
.000

1100
1200
1300
1400
1500

6.793
7.690
8.593
9.500
10.411

59.296
60.077
60.8CO
61.472
62.1CI

53.121
53.669
54.190
54.686
55.160

.000
.000
.000
.000
.000

.000
.000
.000
.000
.000

.000
.000
.000
.000
.000

1600
1700
1800
1900
2000

11.326
12.244
13.166
14.090
15.017

62.691
63.248
63.774
64.274
64.750

55.612
56.046
56.460
56.858
57.241

.000

.000
.000
.000
.000
.000

.000
.000
.000
.000
.000

.boo
.000
.000
.000

MELTING POINT

53.54 PEG K

BOILING POINT

85.02 DEG K

HEAT OF FUSION

0.122 KCAL

HEAT OF VAPOR.

1.562 KCAL

H

-H
298

2.1100 KCAL

MOLAR VOLUME 584.727

CAL/BAR

0

TRANSITIONS IN REFERENCE STATE ELEMENTS

REFERENCES 148

148
158

COMPILED
12-10-66

45

PROPERTIES AT HIGH TEMPERATURES
IRON (REFERENCE STATE)

Fe:

GRAM FORMULA WEIGHT

55.847

a crystals (body-centered cubic) 298.15° to 1184°K. Curie
point 1033°K. y crystals (face-centered cubic) 1184° to
1665°K. 5 crystals (body-centered cubic) 1665° to melting
point 1809°K. Liquid 1809° to 2000°K.
FORMATION FROM THE ELEMENTS

T1 rLnr
uD

H _u
n

OEG K

T 298
(KCAL)

298.15 0.000
UNCERTAINTY

T
T 298
(CAL/DEG-GFH)

ENTHALPY
FREE ENERGY
(KCAL/GFW)

LOG K

6.520
O.C30

6.520
0.030

0.000

0.000

0.000

400
500
600
700
800
900
1000

0.635
1.310
2.040
2.830
3.700
4.680
5.840

8.350
9.860
11.190
12.400
13.560
14.720
15.940

6.762
7.240
7.790
8.357
8.935
9.520
10. ICO

.000
.000
.000
.000
.000
.000
.000

.000
.000
.000
.000
.000
.000
.000

.000
.000
.000
.000
.000
.000
.000

1100
1184
1184
1200
1300
1400
1500

7.220
8.030
8.255
8.390
9.210
10.050
10.900

17.260
17.970
18.160
18.270
18.920
19.540
20.130

10.696
11.188
11.188
11.278
11.835
12.361
12.863

.000
.000
.000
.000
.000
.000
.000

.000
.000
.000
.000
.000
.000
.000

.000
.000
.000
.000
.000
.000
.000

1600
1665
1665
1700
1800
1809
1809
1900
2000

11.770
12.340
12.600
12.940
13.930
14.020
17.650
18.610
19.660

20.690
21.C40
21.200
21.400
21.970
22.C20
24.030
24.540
25.080

13.334
13.630
13.630
13.788
14.231
14.270
14.270
14.745
15.250

.000
.000
.000
.000
.000
.000
.000
.000
.000

.000
.000
.000
.000
.000
.000
.000
.000
.000

.000
.000
.000
.000
.000
.000
.000
.000
.000

MELTING POINT
HEAT OF FUSION
H

-H
298

DEC K

1809

3.630 KCAL
1.0730 KCAL

BOILING POINT
HEAT OF VAPOR.
MOLAR VOLUME

3148

DEG K

83.710 KCAL
0.16950 CAL/BAR

0

TRANSITIONS IN REFERENCE STATE ELEMENTS

REFERENCES

68

68

COMPILED
6-13-66

46

THERMODYNAMIC PROPERTIES OF MINERALS

HYDROGEN (REFERENCE STATE)
H-

GRAM FORMULA WEIGHT

2.016

Ideal diatomic gas 298.15° to 2000°K.

FORMATION FROM THE ELEMENTS

TEMP.

H -H
T 298
(KCAL)

DEG K

S

-(G -H
)/'
T
T «98
(CAL/DEG-GFW)

ENTHALPY
FREE ENERGY
(KCAL/GFW)

LOG K

298. 15 0.000
UNCERTAINTY

31.2C8
0.010

31.208
0.010

0.000

0.000

0.000

400
500
600
700
800
900
1000

0.707
1.406
2.106
2.608
3.514
4.226
4.944

33.247
34.8C6
36.082
37.165
38.107
38.946
39.702

31.479
31.994
32.572
33.154
33.714
34.250
34.758

.000
.000
.000
.000
.000
.000
.000

.000
.000
.000
.000
.000
.000
.000

.000
.000
.000
.000
.000
.000
.000

1100
1200
1300
1400
1500

5.670
6.404
7.148
7.902
8.668

40.394
41.033
41.628
42.187
42.716

35.239
35.696
36.130
36.543
36.937

.000
.000
.000
.000
.000

.000
.000
.000
.000
.000

.000
.000
.000
.000
.000

1600
1700
1800
1900
2000

9.446
10.233
11.030
11.836
12.651

43.217
43.695
44.150
44.586
45.004

37.313
37.676
38.022
38.357
38.678

.000
.000
.000
.000
.000

.000

.000
.000
.000
.000
.000

.000

.000
.000
.000

MELTING POINT

13.96 DEG K

BOILING POINT

20.39 DEG K

HEAT OF FUSION

O.C28 KCAL

HEAT OF VAPOR

0.216 KCAL

H

-H

298

2.C240 KCAL

MOLAR VOLUME 584.727

CAL/BAR

0

TRANSITIONS IN REFERENCE STATE ELEMENTS

REFERENCES 148

148
158

COMPILED
12-10-66

PROPERTIES AT HIGH TEMPERATURES
HAFNIUM (REFERENCE STATE)
Hft

47

GRAM FORMULA WEIGHT

178.490

Hexagonal close packed crystals 298.15° to melting point
2500°K.
FORMATION FROM THE ELEMENTS

TEMP.

H -H
T 298
(KCAL)

OEG K

S

-(G -H
)/T
T
T 298
(CAL/OEG-GFW)

ENTHALPY
FREE ENERGY
IKCAL/GFW)

LOG K

298.15 0.000
UNCERTAINTY

10.410
0.050

10.410
0.050

0.000

0.000

0.000

400
SCO
600
700
800
900
1000

0.636
1.278
1.939
2.618
3.316
4.031
4.765

12.240
13.660
14.880
15.930
16.860
17.700
18.470

10.650
11.124
11.648
12.190
12.715
13.221
13.7C5

.000
.000
.000
.000
.000
.000
.000

.000
.000
.000
.000
.000
.000
.000

.000
.000
.000
.000
.000
.000
.000

1100
12CO
1300
1400
1500

5.517
6.287
7.076
7.882
8.707

19.190
19.860
20.490
21.090
21.660

14.175
14.621
15.047
15.460
15.855

.000
.000
.000
.000
.000

.000
.000
.000
.000
.000

.000
.000
.000
.000
.000

1600
17CO
1800
1900
2000

9.550
10.412
11.291
12.189
13.105

22.200
22.720
23.230
23.710
24.180

16.231
16.595
16.957
17.295
17.627

.000
.000
.000
.000
.000

.000
.000
.000
.000
.000

.000
.000
.000
.000
.000

MELTING POINT
HEAT OF FUSION
H

-H
298

250C
DEC K
5.750 KCAL
1.397 KCAL

BOILING POINT 4876
DEC K
HEAT OF VAPOR. 137.462 KCAL
MCLAR VOLUME 0.32216 CAL/BAR

0

TRANSITIONS IN REFERENCE STATE ELEMENTS

REFERENCES

68

68

COMPILED
4-15-67

48

THERMODYNAMIC PROPERTIES OF MINERALS

MERCURY (REFERENCE STATE)

Hg:

GRAM FORMULA WEIGHT

Liquid 298.15° to boiling point 629.73°K.

200.590

Ideal monatomic

gas 629.73° to 2000°K.

T C tt D

n

_ LJ

1 r:^ r

H

DEG K

T 298
(KCAL)

Sir" LJ
\ /T
T
T 298
(CAL/DEG-GFW)

FORMATION FROM THE ELEMENTS
ENTHALPY
FREE ENERGY
(KCAL/GFW)

LOG K

298.15 0.000
UNCERTAINTY

18.170
O.C20

18.170
0.020

0.000

0.000

0.000

4CO
500
600
629.73
629.73
700
800
900
1000

0.673
1.325
1.974
2.167
16.339
16.649
17.146
17.642
18.139

20.114
21.569
22.751
23.064
45.567
46.033
46.697
47.282
47.805

18.431
18.919
19.461
19.622
19.622
22.249
25.265
27.680
29.666

.000
.000
.000
.000
.000
.000
.000

.000

.coo

.000
.000
.000
.000
.000
.000
.000
.000
.000

.000
.000
.000
.000
.000
.000
.000
.000

1100
1200
1300
1400
1500

18.636
19.133
19.630
20.126
20.623

48.279
48.711
49.109
49.477
49.820

31.337
32.767
34.0C9
35.101
36.071

.000
.000
.000
.000
.000

.000
.000
.000
.000
.000

.000
.000
.000
.000
.000

16CO
17CO
1800
1900
2000

21.120
21.617
22.114
22.610
23.107

50.140
50.442
50.725
50.994
51.249

36.940
37.726
38.439
39.094
39.695

.000
.000
.000
.000
.000

.000
.000
.000
.000
.000

.000
.000
.000
.000
.000

.000

MELTING POINT

234.29 DEC K

BOILING POINT

629.73 DEC K

HF.AT OF FUSION

0.549 KCAL

HEAT OF VAPOR.

14.172 KCAL

H

-H
?98

2.2330 KCAL

MOLAR VOLUME

0.35425 CAL/BAR

0

REFERENCES

68

158

COMPILED
4-15-67

49

PROPERTIES AT HIGH TEMPERATURES
IODINE (REFERENCE STATE)
I,:

GRAM FORMULA WEIGHT

253.809

Crystals 298.15° to melting point 386.75°K. Liquid 386.75°
to boiling point 458.39°K.
Ideal diatomic gas 458.39° to
2000°K.

TCMD
1 IT PI"

H

DEG K

T 298
(KCAL)

nij

298.15 0.000
UNCERTAINTY
386.75
386.75
400
458.39
458.39
500
600
700
800
900
1000

1.232
4.941
5.196
6.322
16.348
16.719
17.616
18.515
19.416
20.320
21.225

1100
1200
1300
1400
1500

22.132
23.041
23.950
24.862
25.775'

1600
1700
1800
1900
2000

26.689
27.605
28.522
29.441
30.361

_ I1 r
\I /i *r
u _u
n
T
298

S
T

(CAL/DEG-GFK)

FORMATION FROM THE ELEMENTS
ENTHALPY
FREE ENERGY
(KCAL/GFH)

LOG K

27.757
O.C40

27.757
0.040

0.000

0.000

0.000

31.312
41.601
44.221
66.C92
66.876
68.510
69.696
71.100
72.164
73.118

28.126
28.126
28.611
30.429
30.429
33.438
39.150
43.446
46.830
49.586
51.893

.000
.000
.000
.000
.000
.000
.000
.000
.000
.000
.000

.000
.000
.000
.000
.000
.000
.000
.000
.000
.000
.000

.000
.000
.000
.000
.000
.000
.000
.000
.000
.000
.000

73.982
74.773
75.501
76.177
76.806

53.862
55.572
57.078
58.418
59.623

.000
.000

.000
.000

.000
.000

.000
.000
.000

.000
.000
.000

.000

77.397

60.716
61.714
62.630
63.478
64.263

.000
.000
.000
.000
.000

.000
.000
.000
.000
.000

.000
.000
.000
.000
.000

40.901

77.952

78.476
78.973
79.444

.000
.000

MELTING POINT

386.75 DEG K

BOILING POINT

458.39 DEG K

HEAT OF FUSION

3.709 KCAL

HEAT OF VAPOR.

10.026 KCAL

H

3.1540 KCAL

-H
298

MOLAR VOLUME

1.22586 CAL/BAR

0

TRANSITIONS IN REFERENCE STATE ELEMENTS

REFERENCES 148

148
158

COMPILED
4-15-67

THERMODYNAMIC PROPERTIES OF MINERALS

50

POTASSIUM (REFERENCE STATE)

GRAM FORMULA WEIGHT

39.102

Body-centered cubic crystals 298.15° to melting point 336.4°K.
Liquid 336.4° to fictive boiling point 1043.7°K. Ideal
monatomic gas 1043.7° to 2000°K. The equilibrium boiling
point to the real gas is 1037°K.
H _u
n
T 298
(KCAL)

TCUD
1 t r! r

DEC K

FORMATION FROM THE ELEMENTS
| /*

S

1G

||

H

T
T 298
(CAL/OEG-GFVn

1 /T

)/T

ENTHALPY
FREE ENERGY
(KCAL/GFW)

LOG K

298.15 0.000
UNCERTAINTY

15.480
0.020

15.480
0.020

0.000

0.000

0.000

336.4
336.4
400
500
600
700
800
900
1000

.280
.842
1.327
2.070
2.796
3.512
4.224
4.936
5.657

16.364
18.030
19.355
21.013
22.338
23.442
24.392
25.231
25.990

15.530
15.530
16.037
16.873
17.678
18.425
19.112
19.747
20.333

.000
.000
.000
.000
.000
.000
.000
.000
.000

.000
.000
.000
.000
.000
.000
.000
.000
.000

.000
.000
.000
.000
.000
.000
.000
.000
.000

1043.7
1043.7
1100
1200
1300
1400
1500

5.970
25.014
25.294
25.791
26.288
26.785
27.282

26.300
44.547
44.805
45.238
45.635
46.004
46.347

20.580
20.580
21.810
23.745
25.413
26.872
28.159

.000
.000
.000
.000
.000
.000
.000

.000
.000
.000
.000
.000
.000
.000

.000
.000
.000
.000
.000
.000
.000

1600
1700
1800
1900
2000

27.779
28.277
28.775
29.275
29.775

46.668
46.969
47.254
47.524
47.781

29.306
30.335
31.268
32.116
32.893

.000
.000
.000
.000
.000

.000
.000
.000
.000
.000

.000
.000
.000
.000
.000

BOILING POINT

1043.7

MELTING POINT
HEAT OF FUSION
H

DEG K

0.562 KCAL
1.6930 KCAL

-H
298

336.4

HEAT OF VAPOR.
MOLAR VOLUME

OEG K

19.044 KCAL
1.0841

CAL/BAR

0

TRANSITIONS IN REFERENCE STATE ELEMENTS

REFERENCES 148

68

COMPILED
4-15-67

PROPERTIES AT HIGH TEMPERATURES
LITHIUM (REFERENCE STA'TE)

51

GRAM FORMULA WEIGHT

6.939

Crystals 298.15° to melting point 453.69°K. Liquid 453.69°
to boiling point 1638°K. ideal roonatomic gas 1638° to 2000°K.
The equilibrium boiling point to the real gas is 1620°K.
FORMATION FRCM THE ELEMENTS

TEKP.

H

OEG K

T 298
(KCAL)

_ LI

n

298.15 0.000
UNCERTAINTY

T
T 298
(CAL/OEG-GFV.)

ENTHALPY
FREE ENERGY
(KCAL/GFW)

LOG K

6.950
0.040

6.950
0.040

0.000

0.000

0.000

400
453.69
453.69
500
600
700
800
900
1000

0.632
.999
1.716
2.050
2.763
3.463
4.155
4.846
5.536

8.770
9.626
11.2C7
11.911
13.212
14.290
15.214
16.028
16.755

7.190
7.424
7.424
7.811
8.6C7
9.343
10.020
10.644
11.219

.000
.000
.000
.000
.000
.000
.000
.000
.000

.000
.000
.000
.000
.000
.000
.000
.000
.000

.000
.000
.000
.000
.000
.000
.000
.000
.000

1100
1200
13CO
1400
1500

6.224
6.912
7.598
8.283
8.966

17.411
18.0C9
18.558
19.066
19.537

11.753
12.249
12.713
13.150
13.560

.000
.000
.000
.000
.000

.000
.000
.000
.000
.000

.000
.000
.000
.000
.000

1600
1638
1638
1700
1800
1900
2000

9.647
9.905
45.065
45.374
45.871
46.368
46.866

19.977
20.137
41.602
41.786
42.C71
42.340
42.595

13.948
14.090
14.090
15.095
16.587
17.936
19.162

.000
.000
.000
.000
.000
.000
.000

.000
.000
.000
.000
.000
.000
.000

.000
.000
.000
.000
.000
.000
.000

MELTING POINT
HEAT OF FUSION
H

-H
298

453.69 OEG K

BOILING POINT

0.717 KCAL

HEAT OF VAPOR.

1.1C50 KCAL

MOLAR VOLUME

1638

OEG K

35.160 KCAL
0.31111 CAL/BAR

0

TRANSITIONS IN REFERENCE STATE ELEMENTS

REFERENCES 148

113

COMPILED
4-15-67

THERMODYNAMIC PROPERTIES OF MINERALS

52

GRAM FORMULA WEIGHT

MAGNESIUM (REFERENCE STATE)

Mg:

24.312

Hexagonal close packed crystals 298.15° to melting point 922°K.
Liquid 922° to boiling point 1378°K. Ideal monatomic gas
1363° to 2000°K.
FORMATION FROM THE ELEMENTS

S

_LJ

n

TEMP.

H

DEG K

T 298
(KCAL)

298.15 0.000
UNCERTAINTY

I f*

LJ

T
T 298
(CAL/OEG-GFW)

1 / T

ENTHALPY
FREE ENERGY
(KCAL/GFW)

LOG K

7.810
0.030

7.810
0.030

0.000

0.000

0.000

400
500
600
700
800
900
922
922
1000

0.621
1.260
1.926
2.620
3.342
4.093
4.261
6.401
7.010

9.6CO
11.020
12.240
13.310
14.270
15.160
15.340
17.660
18.290

8.047
8.500
9.030
9.567
10.092
10.612
10.719
10.719
11.280

.000
.000
.000
.000
.000
.000
.000
.000
.000

.000
.000
.000
.000
.000
.000
.000
.000
.000

.000
.000
.000
.000
.000
.000
.000
.000
.000

1100
1200
1300
1363
1363
1400
1500

7.790
8.570
9.350
9.841
40.290
40.475
40.972

19.040
19.710
20.340
20.710
43.050
43.184
43.527

11.958
12.568
13.148
13.490
13.490
14.273
16.212

.000
.000
.000
.000
.000
.000
.000

.000
.000
.000
.000
.000
.000
.000

.000
.000
.000
.000
.000
.000
.000

1600
1700
1800
1900
2000

41.469
41.966
42.463
42.960
43.457

43.847
44.149
44.433
44.701
44.956

17.929
19.463
20.842
22.090
23.227

.000
.000
.000
.000
.000

.000
.000
.000
.000
.000

.000
.000
.000
.000
.000

MELTING POINT
HEAT OF FUSION
H

-H
298

922

OEG K

2.140 KCAL
1.1950 KCAL

BOILING POINT
HEAT OF VAPOR.
MCLAR VOLUME

1363

DEG K

30.449 KCAL
0.33451 CAL/BAR

0

TRANSITIONS IN REFERENCE STATE ELEMENTS

REFERENCES

68

68

COMPILED
4-15-67

PROPERTIES AT HIGH TEMP ERATURES
MANGANESE (REFERENCE STATE)
Mn:

53

GRAM FORMULA WEIGHT

54.938

a crystals 298.15° to 990°K.
0 crystals 990° to 1360°K. >
crystals 1360° to 1410°K.
5 crystals 1410° to melting point
1517°K. Liquid 1517° to boiling point 2324°K.
FORMATION FROM THE ELEMENTS

T CM D

nu

S

1 tnr .

H

DEG K

T 298
(KCAL)

298.15 0.000
UNCERTAINTY

\ \J

ft

T
T 298
(CAL/DEG-GFW)

1 /

1

ENTHALPY
FREE ENERGY
(KCAL/GFW)

LOG K

7.650
O.C20

7.650
0.020

0.000

0.000

0.000

400
500
600
700
ROD
900
990
990
1000

0.690
1.385
2.190
2.895
3.715
4.570
5.360
5.895
5.985

9.640
11.190
12.530
13.720
14.810
15.820
16.660
17.200
17.280

7.915
8.420
8.880
9.584
10.166
10.742
11.245
11.245
11.295

.000
.000
.000
.000
.000
.000
.000
.000
.000

.000
.000
.000
.000
.000
.000
.000
.000
.000

.000
.000
.000
.000
.000
.000
.000
.000
.000

1100
1200
1300
1400
1410
1410
1500

6.890
7.795
8.715
10.220
10.330
10.760
11.780

18.150
18.930
19.670
20.780
20.860
21.160
21.860

11.886
12.434
12.966
13.480
13.534
13.534
14.007

.000
.000
.000
.000
.000
.000
.000

.000
.000
.000
.000
.000
.000
.000

.000
.000
.000
.000
.000
.000
.000

1517
1517
1600
1700
1800
1900
2000

11.970
15.470
16.380
17.480
16.580
19.680
20.780

21.990
24.297
24.940
25.610
26.240
26.830
27.400

14.099
14.099
14.702
15.328
15.918
16.472
17.010

.000
.000
.000
.000
.000
.000
.000

.000
.000
.000
.000
.000
.000
.000

.000
.000
.000
.000
.000
.000
.000

MELTING POINT
HEAT OF FUSION
H

-H
298

DEG K

1517

3.500 KCAL
1.1940 KCAL

BOILING POINT
HEAT OF VAPOR.
MOLAR VOLUME

2324

DEG K

52.790 KCAL
0.17576 CAL/BAR

0

TRANSITIONS IN REFERENCE STATE ELEMENTS

REFERENCES

68

68

COMPILED
4-15-67

54

THERMODYNAMIC PROPERTIES OF MINERALS

MOLYBDENUM IREFERENCE STATE)

Mo:

GRAM FORMULA WEIGHT

95.940

Body-centered cubic crystals 298.15° to melting point 2890°K.

FORMATION FROM THE ELEMENTS
TEMP.

H -H
T 298
(KCAL)

DEC K

298.15 0.000
UNCERTAINTY

5

-(G -H
)/T
T
T 298
JCAL/DEG-GFW)

ENTHALPY
FREE ENERGY
(KCAL/GFW)

LOG K

6.850
O.C50

6.850
0.050

0.000

0.000

0.000

400
500
600
700
800
900
1000

0.598
1.205
1.828
2.462
3.104
3.756
4.422

8.570
9.930
11.060
12.C40
12.900
13.660
14.370

7.075
7.520
8.013
fl.523
9.020
9.487
9.948

.000
,000
,000
,000
,000
,000
,000

,000
,000
,000
,000
,000
,000
,000

,000
,000
,000
,000
,000
,000
,000

1100
1200
1300
1400
1500

5.102
5.8026.518
7.253
8.006

15.010
15.620
16.190
16.740
17.260

10.372
10.785
11.176
11.559
11.923

,000
,000
,000
,000
,000

,000
,000
,000
,000
,000

,000
,000
,000
,000
,000

17.760
18.230
18.690
19.140
19.570

12.274
12.603
12.927
13.246
13.549

,000
,000
,000
.000
,000

,000
,000
,000
,000
,000

,000
,000
,000
,000
,000

1600
1700
1800
1900
2000

8.777
9.566
10.373
11.198
12.041

MELTING POINT
HEAT OF FUSION
H

-H
298

289C

OEG K

6.650 KCAL
1.C980 KCAL

BOILING POINT

4883

DEG K

HEAT OF VAPOR. 141.680 KCAL
MCLAR VOLUME

0.22435 CAL/BAR

0

TRANSITIONS IN REFERENCE STATE ELEMENTS

REFERENCES

68

68

COMPILED
6-13-66

PROPERTIES AT HIGH TEMPERATURES
NITROGEN (REFERENCE STATE)

55

GRAM FORMULA WEIGHT

28.013

:======= = ===============

N2 :

Ideal diatomic gas 298.15° to 2000°K.

FORMATION FROM THE ELEMENTS
TEMP.

H -H
T 298
(KCAL)

OEG K

S

-CG -H
)/T
T
T 298
(CAL/DEG-GFK)

ENTHALPY
FREE ENERGY
(KCAL/GFW)

LOG K

298. 15 0.000
UNCERTAINTY

45.770
0.020

45.770
0.020

0.000

0.000

0.000

400
500
600
700
800
900
1000

0.710
1.413
2.125
2.853
3.596
4.355
.5.129

47.818
49.386
50.685
51.806
52.798
53.692
54.5C7

46.043
46.560
47.143
47.730
48.303
48.853
49.378

.000
.000
.000
.000
.000
.000
.000

.000
.000
.000
.000
.000
.000
.000

.000
.000
.000
.000
.000
.000
.000

1100
1200
1300
1400
1500

5.917
6.718
7.529
8.350
9.179

55.258
55.955
56.604
57.212
57.784

49.879
50.357
50.812
51.248
51.665

.000
.000
.000
.000
.000

.000
.000
.000
.000
.000

.000
.000
.000
.000
.000

1600
1700
1800
1900
2000

10.015
10.858
11.707
12.560
13.418

58.324
58.835
59.320
59.782
60.222

52.065
52.448
52.816
53.171
53.513

.000
.000
.000
.000
.000

.000
.000
.000
.000
.000

.000
..000
.000
.000
.000

MELTING POINT

63.18 OEG K

BOILING POINT

77.36 DEG K

HEAT OF FUSION

0.172 KCAL

HEAT OF VAPOR.

1.335 KCAL

H

-H
298

2.C720 KCAL

MOLAR VOLUME 584.727

CAL/.BAR

0

TRANSITIONS IN REFERENCE STATE ELEMENTS

REFERENCES 148

148
158

COMPILED
12-10-66

THERMO DYNAMIC PROPERTIES OF MINERALS

56

GRAM FORMULA WEIGHT

SODIUM (REFERENCE STATE)

22.990

Body-centered cubic crystals 298.15° to melting point 370.98°K.
Liquid 370.98° to fictive boiling point 1176. 9°K. Ideal
monatomic gas 1176.9° to 2000°K. The equilibrium boiling
to_the_real_2as_is_1156^Ki ____ _______ __________

Na:

TEMP.

H -H
T 298
(KCAL)

DEC K

S

-/T
T
T 298
(CAL/DEG-GFM

ENTHALPY
FREE ENERGY
(KCAL/GFW)

LOG K

7.800
0.100

7.800
0.100

0.000

0.000

0.000

400
500
600
700
800
900
1000

0.602
1.208
1.826
2.452
3.085
3.726
4.373

9.540
10.890
12.010
12.980
13.820
14.580
15.260

8.035
fl.474
8.967
9.477
9.964
10*440
10.887

.000
.000
.000
.000
.000
.000
.000

.000
.000
.000
.000
.000
.000
.000

.000
.000
.000
.000
.000
.000
.000

1100
1200
1300
1400
1500

5.028
5.692
6.363
7.043
7.731

15.900
16.470
17.010
17.520
17.990

11.329
11.727
12.115
12.489
12.836

.000
.000
.000
.000
.000

.000
.000
.000
.000
.000

.000
.000
.000
.000
.000

1600
1700
1800
1900
2000

8.427
9.131
9.843
10.563
11.291

18.440
18.870
19.270
19.660
20.040

13.173
13.499
13.802
14.1C1
14.394

.000
.000
.000
.000
.000

.000
.000
.000
.000
.000

.000
.000
.000
.000
.000

MELTING POINT
HF.AT OF FUSION
H

-H
298

3680

DEC K

8.460 KCAL
1.1900 KCAL

BOILING POINT

5828

DEG K

HEAT OF VAPOR. 196.920 KCAL
MOLAR VOLUME

0.22813 CAL/BAR

0

TRANSITIONS IN REFERENCE STATE ELEMENTS

REFERENCES

68

68

COMPILED
4-29-67

PROPERTIES AT HIGH TEMPERATURES
GRAM FORMULA WEIGHT

ZINC (REFERENCE STATE)
Zn:

77
65.370

Hexagonal close packed crystals 298.15° to melting point
692.7°K. Liquid 692.7° to boiling point 1181°K. Ideal
monatomic gas 1181° to 2000°K.
FORMATION FROM THE ELEMENTS
H "~ H
T
298

T C ft* D

1 tnr

OEG K

(KCAL)

f f*

S

LJ

T
T 298
(CAL/DEG-GFW)

1 /T

___

____

_____

ENTHALPY
FREE ENERGY
(KCAL/GFW)

LOG K

9.950
0.050

9.950
0.050

0.000

0.000

0.000

0.630
1.270
1.940
2.580
4.345
4.400
5.150
5.900
6.650

11.760
13.200
14.410
15.400
17.950
18.030
19.030
19.920
20.710

10.185
10.660
11.177
11.676
11.676
11.744
12.592
13.364
14.060

.000
.000
.000
.000
.000
.000
.000
.000
.000

.000
.000
.000
.000
.000
.000
.000
.000
.000

.000
.000
.000
.000
.000
.000
.000
.000

1100
1184
1184
1200
1300
1400
1500

7.400
8.030
35.650
35.660
36.157
36.654
37.150

21.420
21.970
45.300
45.370
45.770
46.140
46.480

14.693
15.188
15.188
15.653
17.957
19.959
21.713

.000
.000
.000
.000
.000
.000
.000

.000
.000
.000
.000
.000
.000
.000

.000
.000
.000
.000
.000
.000
.000

1600
1700
1800
1900
2000

37.647
38.144
38.641
39.138
39.634

46.800
47. ICO
47.380
47.650
47.910

23.271
24.662
25.913
27.051
28.093

.000
.000
.000
.000
.000

.000
.000
.000
.000
.000

.000
.000
.000
.000
.000

298.15 0.000
UNCERTAINTY
400
500
600
692.7
,692.7
700
800
900
1000

MELTING POINT
HEAT OF FUSION
H

-H
298

692.7

DEG K

1.765 KCAL
1.3500 KCAL

BOILING POINT
HEAT OF VAPOR.
MOLAR VOLUME

1184

.000"

OEG K

27.620 KCAL
0.21898 CAL/BAR

0

TRANSITIONS IN REFERENCE STATE ELEMENTS

REFERENCES

68

68

COMPILED
4-15-67

78

THERMODYNAMIC PROPERTIES OF MINERALS

ZIRCONIUM (REFERENCE STATE)

Zr:

GRAM FORMULA WEIGHT

91.220

Hexagonal close packed crystals 298.15° to .1143.2°K. Bodycentered cubic crystals 1143.2° to melting point 2128°K.
FORMATION FROM THE ELEMENTS

T1 tnr
CUD

H

DEC K

T 298
(KCAL)

n

_LJ

298.15 0.000
UNCERTAINTY

S

(G -H
)/T
T
T 298


-

-(G -H
)/T
T
T 298
(CAL/OEG-GFW)

FORMATION FROM THE ELEMENTS
ENTHALPY
FREE ENERGY LOG K
(KCAL/GFM)

36.20
0.50

36.20
0.50

137.160
0.300

117.955
0.350

86.463
0.257

44.19

37.26
39.30
41.64
44.01
46.33

136.776
136.392
1417285"

111.458
105.167

140.952
140.579

-91.292
-84.227

60.898
45.968
"35^849
28.502
23.010

50.56
55.89
60.51

64.61

DEG K

BOILING POINT

HEAT OF FUSION

KCAL

HEAT OF VAPOR.

H

KCAL

MOLAR VOLUME

MELTING POINT

1098

-H
298

2040

OEG K
KCAL

1.1885

CAL/BAR

0

TRANSITIONS IN REFERENCE STATE ELEMENTS
BISMUTH.... M. P. 544.5, 8. P. 1852 DEG K.

REFERENCES

74

158

158

105

COMPILED
5-06-67

100

THERMODYNAMIC PROPERTIES OF MINERALS

CARBON MONOXIDE

CO:

GRAM FORMULA WEIGHT

28.011

Ideal gas 298.15° to 2000°K.
FORMATION FROM THE ELEMENTS

TEMP.

H -H

OEG K

T 298
(KCAL)

298.15 0.000
UNCERTAINTY

400

900

0.711
1.417
2.137
2.873
3.627
4.397

1000

5.183

1100
1200
1300
1400
1500

5.983
6.794

500

600
700
800

5

-(G -H
)/T
T
T 298
(CAL/DEG-GFK)

ENTHALPY
FREE ENERGY
(KCAL/GFW)

LOG K

47.22
O.C1

26.416
0.020

-32.781
0.030

24.029
0.022

49.27
50.85

47.49
48.60
49.19
49.76

-34.973
-37.141
-39.308
-41.465

19.108

52.16
53.29

26.317
26.295
26.331
26.409
26.513
26.637
26.770

-49.956

-52.044
-54.120
-56.183
-58.235

9.925
9.479
9.098
8.770
8.485

47.22

0.01

54.30
55.20
56.03

48.01

50.32
50.85

-43.609
'45.739
-47.854

16.234

14.318
12.946
11.913
11.107
10.459

57.50
58.16

51.36
51.84
52.20

9.285

58.77
59.35

53.16

26.913
27.062
27.217
27.375
27.536

1600
1700
1800

10.130

59.90

53.57

27.699

-60.277

8.233

10.980

60.41

11.836

60.90

1900
2000

12.697
13.561

61.37

53.96
54.33
54.69

55.03

-62.309
-64.330
-66.340
-68.345

8.010
7.811
7.631

61.81

27.864
28.032
28.200
28.371

7.616
8.446

56.79

52.74

7.468

MELTING POINT

68.05 OEG K

BOILING POINT

81.61 OEG K

HEAT OF FUSION

0.200 KCAL

HEAT OF VAPOR.

1.444 KCAL

H

-H
298

2.C720 KCAL

MOLAR VOLUME

584.727

CAL/BAR

0

TRANSITIONS IN REFERENCE STATE ELEMENTS

REFERENCES 148

158

158

COMPILED
2-12-67

PROPERTIES AT HIGH TEMPERATURES
CARBON DIOXIDE

CO :

101

GRAM FORMULA WEIGHT

44.010

Ideal gas 298.15° to 2000°K.

FORMATION FROM THE ELEMENTS
TEMP.

H -H
T 298
(KCAL)

OEG K

S

-(G -H
)/T
T
T 298
(CAL/DEG-GFW)

ENTHALPY
FREE ENERGY
(KCAL/GFW)

LOG K

298.15 0.000
UNCERTAINTY

51.06
0.01

51. C6
0.01

-94.051
0.030

-94.257
0.040

69.092
0.029

400
500
600
700
800
900
1000

0.958
1.987
3.087
4.245
5.453
6.702
7.984

53.82
56.11
58.11
59.90
61.51
62.98
64.33

51.42
52.14
52.97
53.83
54.69
55.53
56.35

-94.067
-94.088
-94.121
-94.166
-94.215
-94.267
-94.318

-94.326
-94.387
-94.445
-94.495
-94. 539
-94.577
-94. 609

51.537
41.257
34.401
29.503
25.827
22.966
20.677

1100
1200
1300
1400
1500

9.296
10.632
11.988
13.362
14.750

65.58
66.74
67.83
68.85
69.80

57.13
57.88
58.61
59.30
59.97

-94.368
-94.416
-94.466
-94.512
-94.559

-94.636
-94.657
-94.675
-94.688
-94.700

18.802
17.239
15.916
14.781
13.798

1600
1700
1800
1900
2000

16.152
17.565
18.987
20.418
21.857

70.71
71.57
72.38
73.15
73.89

60.61
61.23
61.83
62.41
62.96

-94.604
-94.647
-94.693
-94.739
-94.785

-94.710
-94.713
-94.716
-94.716
-94.715

12.937
12.176
11.500
10.895
10.350

MELTING POINT

DEG K

BOILING POINT

DEG K

HEAT OF FUSION

KCAL

HEAT OF VAPOR.

KCAL

MOLAR VOLUME 584.727

CAL/BAR

H

-H
298

2.2380 KCAL
0

TRANSITIONS IN REFERENCE STATE ELEMENTS

REFERENCES 148

158
58

158

COMPILED
5-06-67

THERMODYNAMIC PROPERTIES OF MINERALS

102
LIME

GRAM FORMULA WEIGHT

CaO:

56.079

Crystals 298.15° to 2000°K.

FORMATION FROM THE ELEMENTS
TEMP.

H -H
T 298
(KCAL)

DEC K

298.15 0.000
UNCERTAINTY

S

-(G -H
)/'
T
T 298
(CAL/DEG-GFW)

ENTHALPY
FREE ENERGY
(KCAL/GFW)

9.50
0.50

9.50
0.50

-151.790
0.300

-144.352
0.340
-141.821
-139.364
-136.918
-134.482
-T327C5?"

400
SCO
600
700
800
900
1000

1.100
2.230
3.400
4.600
5.820
7.040
8.270

12.67
15.19
17.32
19.17
20.80
22.23
23.53

.9.92
10.73
11.65
12.60
13.52
14.41
15.26

-151.702
-151.622
-151.555
-151.509
=1517523
-151.540
-151.623

1100
1200
1300
1400
1500

9.520
10.800
12.110
13.430
14.760

24.72
25.84
26.88
27.86
28.78

16.07
16.84
17.56
18.27
18.94

1600
1700
1800
1900
2000

16.100
17.440
18.780
20.130
21.480

29.64
30.46
31.22
31.95
32.65

19.58
20.20
20.79
21.36
21.91

MELTING POINT

2887

LOG K
105.812
0.249

-129.611
-127.171

77.487
60.916
49.872
41.987
36.075
31.474
27.793

-151.753
-153.657
-153.515
-153.367
-153.213

-124.724
-122.132
-119.490
-116.893
-114.282

24.780
22.243
20.088
18.248
16.651

-153.051
-152.892
-189.016
-188.613
-188.213

-111.696
-109.127
-105.625
-101.004
-96.432

15.257
14.029
12.825
11.618
10.538

"

OEG K

BOILING POINT

DEG K

HEAT OF FUSION

KCAL

HEAT OF VAPOR.

KCAL

H

KCAL

MOLAR VOLUME

-H
298

0.40067 CAL/BAR

0

TRANSITIONS IN REFERENCE STATE ELEMENTS
CALCIUM.... ALPHA-BETA 737, I*. P. BETA 1123 f B. P. 1756 OEG K.

REFERENCES

74

78

65

COMPILED
6-13-66

PROPERTIES AT HIGH TEMPERATURES
PQRTLANOITE
Ca(OH)

L03

GRAM FORMULA WEIGHT

74.095

Crystals 298.15° to 700°K.

FORMATION FROM THE ELEMENTS
TEMP.

H -H
T 298
(KCAL)

DEC K

298.15 0.000
UNCERTAINTY
AGO
500
(SOO
700

2.300
4.720
7.240
9.830

5

-

-t 930
*dW3i

oST'862
*

1H9I3M VinWbOd WV«9

HDIH IV

61T

THERMODYNAMIC PROPERTIES OF MINERALS

120
BRUCITE

GRAM FORMULA WEIGHT

58.327

Mg(OH) 2 :

Crystals 298.15° to 600°K. At approximately 540°K the
partial pressure of I^O in equilibrium with brucite
reaches one atmosphere.
___ _ ,-_.. _____ -.________. _ « __ __ __.._____..__.
_______ _. .____.
FORMATION FROM THE ELEMENTS
TEMP. H -H
S
-(G -H
J/T
T 298
(KCAL)

DEC K

298.15 0.000
UNCERTAINTY

400
500
600

1.890
3.890
6.080

T
T 298
(CAL/DEG-GFW)

ENTHALPY
FREE ENERGY
(KCAL/GFWI

LOG K

15.09
O.C3

15.C9
O.C3

-221.200
0.780

-199.458
0.790

146.206

20.53

15.80
17.21

-221.362
-221.431
-221.362

-192.002
-184.656
-177.303

104.905

24.99
28.98

18.85

0.579

80.713
64.582

MELTING POINT

DEC K

BOILING POINT

OEG K

HEAT OF FUSION

KCAL

HEAT OF VAPOR.

KCAL

H

-H
298

2.7250 KCAL

MOLAR VOLUME

0.58867 CAL/BAR

0

TRANSITIONS IN REFERENCE STATE ELEMENTS
MAGNESIUM.. M. P. 922 t B. P. 1363 DEG K.

REFERENCES

74

78

150
63

COMPILED
4-29-67

121

PROPERTIES AT HIGH TEMPERATURES
.MANGANOSITE

MnO:

GRAM FORMULA WEIGHT

70.937

Crystals 298.15° to melting point 2054°K.

FORMATION FROM THE ELEMENTS
TEMP.

H -H
T 298
(KCAL)

DEC K

5

-/T
T
T 2<38
(CAL/DEG-GFW)

26.04
28.41

30.56

ENTHALPY
FREE ENERGY
(KCAL/GFW)

LOG K

12.68
0.10

124.450
0.200

-111.342
0.210

81.615

13.23
14.31
15.57
16.88
18.18
19.46

124.419
124.270
124.165
123.918

-106.866

58.389
44.800

-102.493

0.154

123.766

-98.221
-93.840
-89.564

29.298
24.468

123.630

-85.315

20.717

35.777

MELTING POINT

OEG K

BOILING POINT

OEG K

H6AT OF FUSION

KCAL

HEAT OF VAPOR.

KCAL

H

KCAL

MOLAR VOLUME

-H
298

0.39699 CAL/BAR

0

TRANSITIONS IN REFERENCE STATE ELEMENTS
MANGANESE.. ALPHA-BETA 990, BETA-GAMMA 1360, GAMMA-DELTA 1410,
M. P. DELTA 1517 DEG K.

REFERENCES

74

78

22

COMPILED
6-13-66

BIXBYITE

Mn 2 O 3 :

GRAM FORMULA WEIGHT

157.874

Crystals 298.15° to 1300°K.

FORMATION FROM THE ELEMENTS
TCUD

LJ

LJ
n _
""n

DEG K

T 298
(KCAL)

I tnr

T
T 298
(CAL/DEG-GFW)

ENTHALPY
FREE ENERGY
(KCAL/GFW)

LOG K

298.15 0.000
UNCERTAINTY

26.40
0.50

26.40
0.50

-228.700
0.500

-210.097
0.530

154.005
0.388

400
500
600
700
800
900
1000

2.550
5.220
8.040
10.990
14.040
17.190
20.420

33.73
39.68
44.82
49.37
53.44
57.15
60.55

27.35
29.24
31.42
33.67
35.89
38.05
40.13

-228.616
-228.432
-228.355
-227.982
-227.769
-227.550
-228.390

-203.746
-197.547
-191.530
-185.280
-179.201
-173.138
-167.104

111.321
86.347
69.765
57.847
48.955
42.043
36.521

1100
1200
1300

23.740
27.150
30.650

63.71
66.68
69.48

42.13
44. C5
45.90

-228.139
-227.811
-227.436

-160.968
-154.897
-148.825

31.981
28.211
25.020

MELTING POINT

DEG K

BOILING POINT

DEG K

HEAT OF FUSION

KCAL

HEAT OF VAPOR.

KCAL

H

KCAL

MOLAR VOLUME

-H
298

0.74976 CAL/BAR

0

TRANSITIONS IN REFERENCE STATE ELEMENTS
MANGANESE.. ALPHA-BETA 990, BETA-GAMMA 1360, GAMMA-DELTA 1410,
M. P. DELTA 1517 DEG K.

REFERENCES

74

78

118
22

COMPILED
6-13-66

THERMODYNAMIC PROPERTIES OF MINERALS

124
HAUSMANNITE

Mn 3 0 4 :

GRAM FORMULA WEIGHT

Tetragonal crystals 298.15° to 1445°K.

228.812

Cubic crystals

1445° to 1800°K.
FORMATION FROM THE ELEMENTS
U

TCMD
1 t r! K

H

OEG K

T 298
(KCAL)

H

T
T 2S8
(CAL/DEG-GFVi)

FREE ENERGY
ENTHALPY
(KCAL/GFH)

LOG K

298.15 0.000
UNCERTAINTY

36.80
1.00

36.80
1.00

-331.400
0.400

-306. 313
0.500

224.533
0.367

400
500
60X)
700
800
900
1000

3.730
7.590
11.590
15.740
19.980
24.250
28.570

47.55
56.16
63.45
69.84
75.50
80. 53
85.08

38.22
40.98
44.13
47.35
50.52
53.59
56.51

-331.188
-330.875
-330.800
-330.321
-330.137
-330.060
-331.639

-297.774
-289.456
-281.408
-272.992
-264.828
-256.661
-248.511

162.695
126.521
102.503
85.232
72.347
62.326
54.312

1100
1200
1300
1400
1445
1445
1500

33.020
37.650
42.510
47.620
49.960
54.930
57.690

89.32
93.35
97.23
101.02
102.67
106.11
107.98

59.30
61.97
64.53
67.01
68.10
68.10
69.52

-331.582
-331.363
-330.977
-332.110
-332.240
-327.270
-328.462

-240. 176
-231.905
-223.605
-215.330
-211.560
-211.560
-207. 118

47.719
42.235
37.591
33.614
31.997
31.997
30.177

1600
1700
1800

62.710
67.730
72.750

111.22
114.26
117.14

72.03
74.42
76.72

-338.996
-339.040
-339.098

-198.151
-189.324
-180.529

27.066
24.339
21.919

MELTING POINT

OEG K

BOILING POINT

DEG K

HEAT OF FUSION

KCAL

HEAT OF VAPOR.

KCAL

H

KCAL

MOLAR VOLUME

-H
298

1.1221

CAL/BAR

0

TRANSITIONS IN REFERENCE STATE ELEMENTS
MANGANESE.. ALPHA-BETA 990, EETA-GAMMA 1360, GAMMA-DELTA 1410,
M. P. DELTA 1517 OEG K.

REFERENCES

74

118

22

COMPILED
6-13-66

GRAM FORMULA WE IGHT

MOLYBDITE

Crystals 298.15° to melting point 1074°K.
1400°K.

Mo0 3 :

143.938

Liquid 1074° to

FORMATION FROM THE ELEMENTS
TCMO
I t"r

14
n

_LJ
M

DEG K

T 298
(KCAL)

S

IP

U

1

T
T 298
(CAL/OEG-GFW)

/T

___

___M______

ENTHALPY
FREE ENERGY
(KCAK/GFW)

LOG K

IB. 58
0.10

18.58
0.10

-178.160
0.100

-159.745
0. 110

117.096
0.081

900
1000

1.920
3.970
6.130
8.380
10.720
13.150
15.670

24.11
28.68
32.61
36.08
39.20
42.06
44.72

19.31
20.74
22.39
24.11
25.80
27.45
29. C5

-177.924
-177.577
-177.173
-176.724
-176.223
-175.666
-175.052

-153.490
-147.417
-141.422
-135.499
-129.639
-123.855
-118.127

83.863
64.436
51.513
42.304
35.416
30.076
25.816

1074
1074
1100
1200
1300
1400

17.590
29.280
30.070
33.090
36.110
39.130

46.57
57.45
58.18
60.81
63.23
65.47

30.19'
30.19
30.84
33.23
35.45
37.52

-174.554
-162.864
-162.591
-161.543
-160.524
-159.535

-113.938
-113.938
-112.756
-108.273
-103.883
-99. 559

23.185
23.185
22.402
19.719
17.464
15.542

298.15 0.000
UNCERTAINTY
400
500
600
700

aoo

MELTING POINT
HEAT OF FUSION
H

1074

DEG K

11.690 KCAL

-H
298

KCAL

BOILING POINT

OEG K

HEAT OF VAPOR.

KCAL

MOLAR VOLUME

0.73040 CAL/BAR

0

TRANSITIONS IN REFERENCE STATE ELEMENTS
MOLYBDENUM. M. P. 2890 DEG K.

REFERENCES

74

78

103

COMPILED
12-10-66

126

THERMODYNAMIC PROPERTIES OF MINERALS

NITROGEN DIOXIDE (IDEAL GAS)

N0 2 :

GRAM FORMULA WEIGHT

46.005

Ideal gas 298.15° to 2000°K.

FORMATION FROM THE ELEMENTS
TEMP.

H -H
T 298
(KCAL)

DEC K

S

-(G -H
)/T
T
T 298
(CAL/DEG-GFW)

ENTHALPY
FREE ENERGY
(KCAL/GFW)

LOG K

298.15 0.000
UNCERTAINTY

57.35
0.02

57.35
O.C2

7.930
0.100

12.262
0. 110

-8.989
0.081

400
500
600
700
800
900
1000

0.944
1.948
3.021
4.151
5.327
6.539
7.780

60. 07
62.30
64.26
66. CO
67.57
69.00
70.30

57.71
58.41
59.22
60.07
60.91
61.73
62.52

7.795
7.716
7.678
7.666
7.673
7.691
7.718

13.765
15.267
16.782
18.300
19.819
21.336
22.852

-7.521
-6.673
-6.113
-5.714
-5.414
-5.181
-4.994

1100
1200
1300
1400
1500

9.043
10.324
11.620
12.929
14.247

71.51
72162
73.66
74.63
75.54

63.29
64.02
64.72
65.39
66. C4

7.748
7.781
7.814
7.849
7.881

24.363
25.872
27.378
28.881
30.383

-4.840
-4.712
-4.603
-4.509
-4.427

1600
1700
1800
1900
2000

15.573
16.907
18.247
19.591
20.940

76.39
77.20
77.97
78.70
79.39

66.66
67.26
67.83
68.28
68.92

7.912
7.943
7.969
7.992
8.012

31.882
33.379
34.876
36.370
37.862

-4.355
-4.291
-4.235
-4.184
-4.137

MELTING POINT

261.90 DEG K

HEAT OF FUSION

3.502 KCAL

H

-H
298

2.4370 KCAL

BOILING POINT

294.25 DEG K

HEAT OF VAPOR.
MOLAR VOLUME

9.110 KCAL

584.727

CAL/BAR

0

TRANSITIONS IN REFERENCE STATE ELEMENTS

REFERENCES 148

158

158

COMPILED
2-12-67

127
GRAM FORMULA HEIGHT

SODIUM OXIDE

61.979

1=3333===================3=3=

Na 20:

Crystals 298.15° to melting point 1190°K.

FORMATION FROM THE ELEMENTS
TEMP.

H -H
T 298
(KCAU

OEG K

S

-tG -H
I/T
T
T 298
JCAL/OEG-GFWJ

ENTHALPY
FREE ENERGY
(KCAL/GFM)

LOG K

298.15 0.000
UNCERTAINTY

17.99
0.20

17.99
0.20

-99,400
1.500

-90.161
1.510

66.090
1.107

400
500
600
700
800
900
1000
1100

23.26
27.48
31.11
34.33
37.26
39.95
42.47
44.84

18.79
20.11
21.65
23.23
24.81
26.34
27.83
29.27

-100.685
-100.638
-100.465
-100.174
-99.772
-99.271
-98.675
-98.001

-86.950
-83.517
-80.106
-76.735
-73.416
-70.147
-66.945
-63.809

47.507
36.505
29.179
23.958
20.056
17.034
14.631
12.678

1.789
3.683
5.676
7.768
9.959
12.247
14.636
17.122

MELTING POINT

1193

DEG K

BOILING POINT

DEG K

HEAT OF FUSION

KCAL

HEAT OF VAPOR,

KCAL

H

KCAL

MOLAR VOLUME

CAL/BAR

-H
298

0

TRANSITIONS IN REFERENCE STATE ELEMENTS
SODIUM:..... M. P. 370.98, B. P. 1176.9 DEG K.

REFERENCES 148

50

22

COMPILED
6-13-66

GRAM FORMULA WEIGHT

8UNSENITE
NiO:

74.709

Crystals 298.15° to melting point 2257°K.

H -H
T 298
(KCAL)

TEMP.
OEG K

298*15 0.000
UNCERTAINTY

FORMATION FROM THE ELEMENTS
S

-(G -H
I/I
T 298
T
(CAL/DEG-GFW)

ENTHALPY
FREE ENERGY
(KCAL/GFW)

LOG K

9.08
0.04

9.08
0.04

-57.300
0.100

-50.574
0.110

37.072
0.081

-57.163
-56.865
-56.519
-56.378
-56.259
-56.158

-48.294
-46. 102
-43. 987
-41.879
-39.797
-37.732
-35.677

26.387
20.151
16.022
13.075
10.872
9.162
7.797

400
500
600
700
800
900
1000

1.165
2.535
3.940
5.220
6.500
7.780
9.070

12.43
15.47
18.05
20.02
21.73
23.24
24.60

9.52
10.40
11.48
12.56
13.60
14.60
15.53

1100
1200
1300
1400
1500

10.370
11.700
13.060
14.450
15.860

25.84
26.99
28.08
29.11
30.08

16.41
17.24
18.03
18.79
19.51

-56.077
-55.993
-55.905
-55.806
-55.697

-33.635
-31.584
-29.563
-27.536
-25.511

6.683
5.752
4.970
4.298
3.717

1600
1700
1800
1900
2000

17.300
18.770
20.260
21.770
23.300

31.01
31.90
32.76
33.57
34.36

20.20
20.86
21.50
22.11
22.71

-55.560
-55.396
-59.513
-59.480
-59.430

-23.501
-2j[. 508
-19.340
-17.110
-14.889

3.210
-.2.765
2.348
1.968
1.627

MELTING POINT

2257

r 56.. 620 .

DEC K

BOILING POINT

DEC K

HEAT OF FUSION

KCAL

HEAT OF VAPOR.

KCAL

H

KCAL

MOLAR VOLUME

-H
298

0.26219 CAL/BAR

0

TRANSITIONS IN REFERENCE STATE ELEMENTS
NICKELI.... CURIE P. 631, M. P. 1726 OEG K.

REFERENCES

74

78

18

COMPILED
6-13-66

129

PROPERTIES AT HIGH TEMPERATURES
PHOSPHORUS PENTOXIDE (DIMERIC)

GRAM FORMULA WEIGHT

t===4===fc==3==33c======s^=^=s===a=:

283.889

1=333=========33=======33=H=33

(P 2 0 5 )2:Crystals 298.15° to 1000°K.

FORMATION FROM THE ELEMENTS
itnK.

H -M
T 298
(KCAL)

DEC K

i

-Il» -H

I/I

T
T 298
(CAL/DEG-GFM)

ENTHALPY
FREE ENERGY
(KCAL/GFM)

298.15 0.000
UNCERTAINTY

54. 70
0. 10

54. 70
0. 10

-713. 200
0. 400

-649. 968
0. 410

5.991
13.131
21.431
30.845
41.334
52.856
65.372

71.89
87.77
102.87
117.36
131.35
144.91
158.09

56.91
61.51
67.16
73.30
79.69
86.19
92.72

-712.997
711.796
-709.675
706.683

628.369
607.331
586.625
566.341
: 5677796"
541.030
514.955

400
500
600
700
800
900
1000

MELTING POINT

842

HEAT OF FUSION
H

-H
298

8.258

778.808
772.183

LOG K
476. 438
0. 301
343.324
265.463
213.677
.176.819
155.113
131.380
112.543

DEG K

BOILING POINT

OEG K

KCAL

HEAT OF VAPOR.

KCAL

KCAL

MOLAR VOLUME

2.8393

CAL/BAR

0

TRANSITIONS IN REFERENCE STATE ELEMENTS
PHOSPHORUS. SUBLIMES 704 OEG K.

REFERENCES 148

158

158

COMPILED
2-12-67

130

THERMODYNAMIC PROPERTIES OF MINERALS

LITHARGE (RED)
PbO:

GRAM FORMULA WEIGHT

223.189

Tetragonal crystals 298.15° to 900°K. Massicot (orthorhombic)
is the stable phase above 762°K. See table for lead
monoxide (reference state).
FORMATION FROM THE ELEMENTS

H -H

i

T 298
(KCAL)

DEG K

298.15 0.000
UNCERTAINTY
400
500
600
700
800
900

1.220
2.460
3.740
5.060
6.420
7.820

-

-(G -H
)/T
T
T 2<38
(CAL/DEG-GFW)

ENTHALPY
FREE ENERGY
(KCAL/GFW)

LOG K

298.15 0.000
UNCERTAINTY

13.00
0.20

13.00
0.20

-144.440
0.400

-137.285
0.440

100.632
0.323

400
500
6CO
700
800
900
1000

1.170
2.340
3.550
4.800
6.090
7.410
8.740

16.37
18.98
21.18
23.11
24.83
26.39
27.79

13.44
14.30
15.26
16.25
17.22
18.16
19.C5

-144.292
-144.167
-144.045
-143.934
-143.823
-143.940
-143.933

-134.863
-132.519
-130.194
-127.901
-125.618
-123.343
-121.051

73.686
57.924
47.423
39.932
34.317
29.952
26.456

1100
1200
1300
1400
1500

10.070
11.400
12.740
14.090
15.450

29.06
30.21
31.28
32.28
33.22

19.91
20.71
21.48
22.22
22.92

-146.253
-146.087
-145.915
-145.737
-145.553

-118.641
-116. 122
-113.632
-111.153
-108.692

23.572
21.149
19.103
17.352
15.836

1600
1700
1800

16.820
18.200
19.590

34.11
34.94
35.74

23.60
24.23
24.86

-145.361
-178.241
-177.796

-106.246
-102.567
-98.131

14.513
13.186
11.915

MELTING POINT

2693

HEAT OF FUSION
H

-H
298

N

DEC K

BOILING POINT

OEG K

KCAL

HEAT OF VAPOR.

KCAL

KCAL

MOLAR VOLUME

0.49450 CAL/BAR

0

TRANSITIONS IN REFERENCE STATE ELEMENTS
STRONTIUM..

REFERENCES

74

ALPHA-GAMMA 862, M. P. GAMMA 1043, B. P.

78

108

1648 OEG K.

COMPILED
6-13-66

PROPERTIES AT HIGH TEMPERATURES

145

GRAM FORMULA WEIGHT

THORIANITE

264.037

= = = === = = = = = = = ==='== = = = = = = = a = i =

ThO-:

Crystals 298.15° to 2000°K.

FORMATION FROM THE ELEMENTS
TEMP.

H -H
T 298
(KCAL)

OEG K

S

-CG -H
)/
T
T 2.98
(CAL/OEG-GFW)

ENTHALPY
FREE ENERGY
(KCAL/GFW)

LOG K

298.15 0.000
UNCERTAINTY

15.59
0.05

15.59
0.05

-293.200
0.400

-279.436
0.410

204.831
0.301

400
500
600
700
800
900
1000

1.600
3.210
4.890
6.620
8.390
10.200
12.050

20.20
23.79
26.85
29.51
31.88
34.01
35.96

16.20
17.37
18.70
20. C5
21.39
22.68
23.91

-293.004
-292.825
-292.630
-292.438
-292.256
-292.080
-291.907

-274.759
-270.218
-265.714
-261.240
-256.798
-252.379
-247.973

150.121
118.112
96.786
81.562
70.154
61.286
54.194

1100
1200
1300
1400
1500

13.940
15.860
17.800
19.760
21.740

37.76
39.43
40.98
42.43
43.80

25.09
26.21
27.29
28.32
29.31

-291.746
-291.584
-291.441
-291.315
-291.216

-243.596
-239.215
-234.856
-230.503
-226.179

48.398
43.567
39.483
35.983
32.954

1600
1700
1800
1900
2000

23.740
2 5.'7 50
27.770
29.800
31.840

45.09
46.31
47.46
48.56
49.61

30.25
31.16
32.03
32.88
33.69

-291.123
-291.735
-291.704
-291.669
-296. 129

-221.837
-217.481
-213.103
-208.732
-204.285

30.301
27.959
25.874
24.010
22.323

MF.LTING POINT

3493

HEAT OF FUSION
H

-H
298

OEG K

BOILING POINT

DEG K

KCAL

HEAT OF VAPOR.

KCAL

2.5244 KCAL

MOLAR VOLUME

0.63033 CAL/BAR

0

TRANSITIONS IN REFERENCE STATE ELEMENTS
THORIUM.... ALPHA-BETA 1673, M. P. BETA 1968 OEG K.

REFERENCES 156

78

22

COMPILED
6-13-66

THERMODYNAMIC PROPERTIES OF MINERALS

146
RUTILE
TiO 2 :

GRAM FORMULA WEIGHT

79.899

Crystals 298.15° to melting point 2103°K.

FORMATION FROM THE ELEMENTS
TEMP.

H -H
T 298
(KCAU

DEG K

S

-(G -H
)/l
T
T 298
(CAL/DEG-GFh)

ENTHALPY
FREE ENERGY
(KCAL/GFH)

LOG K

298.15 0.000
UNCERTAINTY

12.04
0.04

12. C4
0.04

-225.760
0.100

-212.559
0.110

155.810
0.081

400
500
600
700
800
900
1000

1.540
3.100
4.735
6.440
8.160
9.900
11.650

16.47
19.95
22.93
25.55
27.85
29.90
31.74

12.62
13.75
15.04
16.35
17.65
18.90
20.09

-225.571
-225.385
-225.170
-224.932
-224.723
-224.535
-224.373

-208.074
-203.723
-199.412
-195.127
-190.889
-186.670
-182.469

113.686
89.047
72.636
60.921
52.148
45.330
39.878

1100
1200
1300
1400
1500

13.420
15.200
17.000
18.820
20.660

33.43
34.98
36.42
37.77
39.04

21.23
22.31
23.34
24.33
25.27

-224.227
-225.071
-224.851
-224.642
-224.445

-178.288
-174.082
-169.839
-165.622
-161.418

35.422
31.705
28.552
25.855
23.519

1600
1700
1800
1900
2000

22.530
24.420
26.340
28.280
30.250

40.24
41.39
42.48
43.53
44.54

26.16
27.03
27.85
28.65
29.41

-224.249
-224.063
-223.879
-223.705
-227.222

-157.203
-153.022
-148.842
-144.682
-140.418

21.473
19.672
18.072
16.642
15.344

MELTING POINT

210

HEAT OF FUSION
H

-H
298

DEG K

BOILING POINT

DEG K

KCAL

HEAT OF VAPOR.

KCAL

2.C720 KCAL

MOLAR VOLUME

0.44981 CAL'/BAR

0

TRANSITIONS IN REFERENCE STATE ELEMENTS
TITANIUM... ALPHA-BETA 1155, M. P. 1943 DEG K.

REFERENCES

74

78

111

COMPILED
6-13-66

PROPERTIES AT HIGH TEMPERATURES
GRAM FORMULA WEIGHT

ANATASE

TiO :

1.47
79.899

Crystals 298. 15°' to 1300°K.

FORMATION FROM THE ELEMENTS
TCftl D

U

n

Iu

DEC K

T 298
(KCAL)

T
T 298
(CAL/DEG-GFW)

1 tflr

n

_LJ

n

l/i

ENTHALPY
FREE ENERGY
(KCAL/GFW)

LOG K

298.15 0.000
UNCERTAINTY

11.93
0.07

11.93
0.07

-225.860
0.320

-212.626
0.330

155.859
0.242

400
500
600
700
800
900
1000

1.540
3.100
4.735
6.440
8.170
9.930
11.720

16.36
19.84
22.82
25.45
27.75
29.82
31.71

12.51
13.64
14.93
16.25
17.54
18.79
19.99

-225.671
-225.485
-225.270
-225.032
-224.813
-224.605
-224.403

-208.130
-203.768
-199.446
-195.157
-190.899
-186.668
-182.469

113.717
89.067
72.648
60.930
52.151
45.329
39.878

11CO
1200
1300

13.530
15.350
17.180

33.44
35.02
36.48

21.14
22.23
23.26

-224.217
-225.021
-224.771

-178.289
-174.080
-169.837

35.423
31.704
28.552

H

-H
298

DEG K

BOILING POINT

DEG K

KCAL

HEAT OF VAPOR.

KCAL

KCAL

MOLAR VOLUME

0.49044 CAL/BAR

0

TRANSITIONS IN REFERENCE STATE ELEMENTS
TITANIUM... ALPHA-EETA 1155, M. P. 1943 DEG K.

REFERENCES

74

78

162

COMPILED
4-29-67

148

THERMODYNAMIC PROPERTIES OF MINERALS

URANINITE
U0 2 :

GRAM FORMULA WEIGHT

270.029

Crystals 298.15° to 2000°K.

FORMATION FROM THE ELEMENTS
TEMP.

H -H
T 298
(KCAL)

OEG K

S

-(G -H
)/T
T
T 298
(CAL/DEG-GFW)

ENTHALPY
FREE ENERGY
(KCAL/GFW)

LOG K

29fl. 15 0.000
UNCERTAINTY

18.63
0.10

18.63
0.10

-259.200
0.600

-246.569
0.610

180.739
0.447

400
500
600
700
800
900
1000

1.680
3.470
5.340
7.280
9.250
11.250
13.280

23.47
27.46
30.86
33.85
36.48
38.83
40.97

19.27
20.52
21.96
23.45
24.92
26.33
27.69

-258.944
-258.620
-258.300
-258.008
-257.786
-257.650
-258.187

-242.295
-238.168
-234. 102
-230.093
-226.120
-222.170
-218. 193

132.383
104.103
85.271
71.838
61.773
53.950
VT.lll

1100
1200
1300
1400
1500

15.340
17.420
19.510
21.620
23.750

42.94
44.75
46.42
47.98
49.45

28.99
30.23
31.41
32.54
33.62

-259.066
-258.744
-258.431
-258.095
-260.846

-214.161
-210.083
-206.045
-202.015
-197.819

42.550
38.261
34.639
31.536
28.822

1600
17CO
1300
1900
2000

25.900
28.070
30.260
32.470
34.700

50.84
52.16
53.41
54.60
55.75

34.65
35.65
36.60
37.51
38.40

-260.493
-260.120
-259.734
-259.334
-258.919

- 19*3. 607
-189.453
-185.291
-181. 166
-177.095

26.445
24.356
22.497
20.839
19.352

MELTING POINT

3151

DEG K

ROILING POINT

OEG K

HEAT OF FUSION

KCAL

HEAT OF VAPOR.

KCAL

H

KCAL

MOLAR VOLUME

-H
298

0.58838 CAL/BAR

0

TRANSITIONS

IN REFERENCE STATE ELEMENTS

URANIUM....

REFERENCES

74

ALPHA-BETA 941,

7fl

BETA-GAMMA 1C48,

22

M.

P.

1405 DEG K.

COMPILED
6-13-66

149

PROPERTIES AT HIGH TEMPERATURES
GRAM FORMULA WEIGHT

KARELIANITE
S = 8333 33* 3333 3 33B3 3= 33 = 3,3= S3 I

V2 0 :

149.882

S333333=S333333=3333 3333333 = 333 = 33333

Crystals 298.15° to 1800 8 K.

FORMATION FROM THE ELEMENTS
TEMP.

H -H
T 298
(KCAL)

OEG K

>

-(G -H
)/T
T
T 298
(CAL/DEG-GFW)

272.273
0.400

199.581

24.56

290.904

290.402
289.827
289.220
288.601
287.980
287.380

265.830
259.617

145.242

26.58

253.524

92.346
77.279

23.53
0.30

23.53
0.30

400
500
600
700
800
900
1000

8.600
11.700
14.870
18.100
21.370

31.36
37.76
43.25

1100
1200
1300
14CO
1500

24.660
27.960
31.360
34.940
38.670

62.64
65.51
68.23
70.98
73.45

40.22
42.21
44.11
46.02

1600
1700
1800

42.480
46.370
50.350

75.91
78.26
80.54

49.36

5.590

28.92

48.02
52.25

31.31

56.06

35.95
38.13

59.50

LOG K

291.290
0.380

298.15 0.000
UNCERTAINTY
2.720

ENTHALPY
FREE ENERGY
(KCAL/GFW)

33.66

47.67

50.98
52.57

247.519
241.593

235.755
229.984

0.293
113.478
66.000
57.249

50.263

286.833
286.345
285.824
285.186
284.467

224.271

283.746
283.031
282.313

196.401

26.827

190.954

24.549
22.527

218.603
212.998
207.556
201.874

185.535

44.558
39.813
35.808
32.401
29.413

MELTING POINT

DEC K

BOILING POINT

DEG K

HEAT OF FUSION

KCAL

HEAT OF VAPOR.

KCAL

H

KCAL

MOLAR VOLUME

-H
298

0.71343 CAL/BAR

0

TRANSITIONS IN REFERENCE STATE ELEMENTS
VANADIUM... M. P. 2175 DEG K.

REFERENCES

74

78

110

COMPILED
4-29-67

150

THERMODYNAMIC PROPERTIES OF MINERALS

TUNGSTEN TRIOXIDE

WO 3 :

GRAM FORMULA HEIGHT

231.848

Crystals (monoclinic ?) 298.15° to 1050°K. Tetragonal
crystals 1050° to melting point 1745°K. Liquid 1745° to
2000°K.
FORMATION FROM THE ELEMENTS

TEMP.

H -H
T
298
(KCAL)

DEC K

5

-

-(G -H
)/T
T
T 298
(CAL/DEG-GFVi)

FORMATION FROM THE ELEMENTS
ENTHALPY
FREE ENERGY
(KCAL/GFW)

LOG K

298.15 0. 000
UNCERTAINTY

25 .30
0 .30

25. 30
0. 30

-295. 560
0. 380

-277. 065
0. 390

203 .093
0 .286

400
500
600
700
800
900
1000

2.595
5.330
8.200
11.130
14.150
17.250
20.430

32.77
38.87
44.10
48.61
52.65
56.30
59.65

26.28
28.21
30.43
32.71
34.96
37.13
39.22

-295.313
-294.992
-294.650
-294.366
-294.126
-293.96?
-293.946

-270.779
-264.682
-258.653
-252.672
-246.742
-240.822
-234.920

147.946
115.692
94.214
78.887
67.407
58.479
51.342

1100
1200
1300
1400
1500

23.650
26.900
30.200
33.540
36.920

62.72
65.54
68.18
70.66
72.99

41.22
43.12
44.95
46.70
48.38

-294.150
-295.118
-294.646
-294.189
-293.738

-229.003
-223.044
-217.062
-211. 127
-205.205

45.499
40.622
36.491
32.958
29.898

1600
1640
1640
1700
1800
1900
2000

40.360
41.750
63.420
66.280
71.040
75.800
80.560

75.21
76.07
89.28
90.99
93.72
96.29
98.73

49.98
50.61
50.61
52.00
54.25
56.40
58.45

-293.280
-293.095
-271.425
-270.675
-269.086
-271.219
-273.446

-199.311
27.225
-196.960
26.247
-196.960 .__26..24.7_
-194.238 '
24.971
-189.804
23.045
-185.261
21.310
-180.661
19.742

MELTING POINT
HEAT OF FUSION
H

1640

OEG K

21.670 KCAL

-H
298

KCAL

BOILING POINT

OEG K

HEAT OF VAPOR.

KCAL

MOLAR VOLUME

0.75741 CAL/BAR

0

TRANSITIONS IN REFERENCE STATE ELEMENTS
IRON....... CURIE P. 1033t ALPHA-GAMMA 1184, GAMMA-DELTA 1665,
M. P. CELTA 1809 DEG K.
TITANIUM... ALPHA-BETA 1155, M. P. 1943 DEG K.

REFERENCES

74

78

80

COMPILED
6-13-66

156

THERMODYNAMIC PROPERTIES OF MINERALS

TITANOMAGNETITE
Fe 2 Ti0 4 :

GRAM FORMULA WEIGHT

223.592

Crystals 298.15° to 1600°K.

FORMATION FROM THE ELEMENTS
TEMP.

H -H
T 298
(KCAL)

DEG K

>

-

-(G -H
)/T
T
T 298
CCAL/DEG-GFH)

298.15 0.000
UNCERTAINTY

37.40
0.30

37.40
0.30

400
500
600
700
800
900
1000

4.330
8.740
13.300
18.010
22.870
27.860
32.960

49.86
59.69
68.00
75.26
81.75
87.63
93.00

39.03
42.21
45.83
49.53
53.16
56.67
60.04

1100
1200
1300
1400
1500

38.130
43.330
48.550
53.800
59.080

97.93
102.45
106.63
110.52
114.16

63.27
66.'34
69.28
72.C9
74.77

1600
1700
1800

64.400
69.760
75.160

117.60
120.85
123.93

77.35
79.81

FORMATION FROM THE ELEMENTS
ENTHALPY
FREE ENERGY
JKCAL/GFW)

LOG K

82.17

MELTING POINT

DEG K

BOILING POINT

DEG K'

HEAT OF FUSION

KCAL

HEAT OF VAPOR,

KCAL

H

KCAL

MOLAR VOLUME

-H
298

1.3033

CAL/BAR

0

TRANSITIONS IN REFERENCE STATE ELEMENTS
COPPER..... M. P. 1357 DEG K.
TITANIUM... ALPHA-BETA 1155, M. P. 1943 DEG K.

REFERENCES

74

78

COMPILED
6-13-66

158

THERMODYNAMIC PROPERTIES OF MINERALS
GRAM FORMULA WEIGHT

SPINEL

142.273

MgAl2 0 4 : Crystals 298.15° to 2000°K.

FORMATION FROM THE ELEMENTS
T 298
(KCAL)

DEC K

T
T 298
(CAL/DEG-GFK)

ENTHALPY
FREE ENERGY
(KCAL/GFH)

LOG K

298.15 0.000
UNCERTAINTY

19. 26
0. 10

19. 26*
0. 10

-552 .800
0 .500

-522. 961
0. 510

383. 339
0. 374

400
500
600
700
800
900
1000

3.140
6.619
10.324
14.188
18.173
22.262
26.441

28.28
36.03
42.78
48.73
54.05
58.87
63.27

20.43
22.79
25.57
28.47
31.34
34.13
36.83

552.949
552.833
552.622
552.378
552.145
551.959
559.017

-512.948
-502.690
-492.677
-482.703
-472.771
-462.854
-452.423

280.261
219.725
179.457
150.706
129.155
112.396
98.877

1100
1200
1300
1400
1500

30.704
35.047
39.464
43.954
48.515

67.33
71.11
74.65
77.97
81.12

39.42
41.91
44.29
46.58
48.78

558.730
-441.772
558.381
-431.165
557.974 "-409:191"
-420.572
5g77855""

587.051

-396.460

87.772
78.526
70.704
63.877
57.764

1600
1700
1800
1900
2000

53.147
57.847
62.615
67.450
72.352

84.11
86.96
89.68
92.30
94.81

50.89
52.93
54.90
56.80
58.64

586.188
585.267
584.290
583.260
582.173

-383.782
-371.157
-358.588
-346.079
-333.629

52.422
47.715
43.538
39.808
36.457

2408

H

-H
298

DEG K

BOILING POINT

OEG K

KCAL

HEAT OF VAPOR.

KCAL

3.6830 KCAL

MOLAR VOLUME

0.94909 CAL/BAR

0

TRANSITIONS IN REFERENCE STATF ELEMENTS
ALUMINUM... M. P. 933 DEG K.
MAGNESIUM.. M. P. 922. B. P. 1363 DEG K.

REFERENCES 148

78

115
151

COMPILED
4-15-67

159

PROPERTIES AT HIGH TEMPERATURES
PICROCHROMITE

MgCr 0 :

GRAM FORMULA WEIGHT

192.302

Crystals 298.15° to 2000°K.

FORMATION FROM THE ELEMENTS

TEMP.

H -H
T 298
(KCAL)

OEG K

i

-(G -H
T
T
2<58
ICAL/DEG-GFV.)

298.15 0.000
UNCERTAINTY

25.30
0.20

25.30
0.20

400
500
6CO
700
800
900
1000

3.350
7.040
10.930
14.940
19.060
23.260
27.520

34.94
43.16
50.25
56.43
61.93
66.87
71.36

26.56
29.C8
32.C3
35.09
38.10
41.03
43.84

1100
12CO
1300
1400
1500

31.810
36.130
40.490
44.890
49.340

75.45
79.21

46.53
49.10
51.54
53.90

1600
1700
1800
1900
2000

53.840
58.370
62.930
67.520
72.140

91.93
94.67
97.28

82.69
85.96
89.03

99.76

102.13

)/T
ENTHALPY
FREE ENERGY
(KCAL/GFWJ

LOG K

56.14

58.28
60.33
62.32
64.22
66. C6

MELTING POINT

OEG K

BOILING POINT

DEG K

HEAT OF FUSION

KCAL

HEAT OF VAPOR.

KCAL

H

KCAL

MOLAR VOLUME

-H
298

1.0411

CAL/BAR

0

TRANSITIONS IN REFERENCE STATE ELEMENTS
CHROMIUM... M. P. 2130 OEG K.
MAGNESIUM.. M. P. 922 f B. P. 1363 DEG K,

REFERENCES

74

78

COMPILED
6-13-66

160

THERMODYNAMIC PROPERTIES OF MINERALS

MAGNESIOFERRITE
MgFe O :
2 4

GRAM FORMULA WEIGHT

a crystals 298.15° to 665°K.

200.004

0 crystals 665° to 1230°K.

7 crystals 1230° to 2000°K.
FORMATION FROM THE ELEMENTS
S
T 298
(KCALI

DEG K

-i
T
T 298
(CAL/DEG-GFM

ENTHALPY
FREE ENERGY
(KCAL/GFH)

LOG K

298.15 0.000
UNCERTAINTY

29.60
0.20

29.60
0.20

-341.720
0.440

-315.112
0.450

230.983
0.330

400
500
600
665
665
700
800
900
1000

3.860
7.870
12.270
15.600
15.600
17.190
21.730
26.270
30.810

40.70
49.63
57.64
62.91
62.91
65.24
71.30
76.65
81.43

31.05
33.89
37.19
39.45
39.45
40.68
44. 14
47.46
50.62

-341.199
-340.640
-339.876
-338.961
-338.961
-338.786
-338.304
-338.103
-340.454

-306.093
-297.371
-288.780
-283.284
-283.284
-280.372
-272.067
-263.786
-255.346

167.241
129.980
105.188
93.100
93.100
87.536
74.325
64.056
55.806

1100
1200
1230
1230
1300
1400
1500

35.350
39.890
41.250
41.600
44.630
49.000
53.520

85.76
89.71
90.83
91.11
93.51
96.75
99.87

53.62
56.47
57.29
57.29
59.18
61.75
64.19

-341.132
-341.408
-341.297
-340.947
-340.802
-370.965
-370.384

-246.789
-238.230
-235.637
-235.637
-229.673
-220.314
-209.565

49.032
43.387
41.869
41.869
38.611
34.392
30.533

1600
1700
1800
1900
2000

58.190
63.000
67.960
73.060
78.300

102.88
105.80
108.63
111.39
114. C7

66.51
68.74
70.87
72.94
74.92

-369.705
-369.496
-368.791
-375.338
-374.495

-198.865
-188.196
-177.528
-166.579
-155.595

27.164
24.194
21.555
19.161
17.003

MELTING POINT

DEC K

BOILING POINT

DEG K

HEAT OF FUSION

KCAL

HEAT OF VAPOR.

KCAL

H

KCAL

MOLAR VOLUME

-H
298

1.0652

CAL/BAR

0

TRANSITIONS IN REFERENCE STATE ELEMENTS
IRON....... CURIE P. 1033t ALPHA-GAMMA 1184, GAMMA-DELTA 1665,
M. P. DELTA 1809 OEG K.
MAGNESIUM.. M. P. 922, B. P. 1363 OEG K.

REFERENCES

74

78

93

COMPILED
5-06-67

GRAM FORMULA WEIGHT

GEIKELITE

MgTiO^:

120.210

Crystals 298.15 0 to 2000°K,

FORMATION FROM THE ELEMENTS
TEMP.

H -H
T 298
(KCAL)

DEG K

S

-

-(G -H
)/T
T
T 298
(CAL/DEG-GFH)

ENTHALPY
FREE ENERGY
(KCAL/GFW)

LOG K

298.15 0.000
UNCERTAINTY

23.00
0.10

23.CO
0.10

30.370
0.300

-26.242
0.310

19.236
0.227

400
500
600
700
728
728
800
900
1000

26.81
29.93
32.54
34.86
35.45
39.68
41.19
43.07
44.76

23.51
24.49
25.62
26.77
27.10
27.10
28.30
29.84
32.25

-30.097
-29.744
-29.388
-28.967
-28.838
-25.758
-25.420
-24.950
-25.502

-24.873
-23.607
-22.419
-21.280
-20.970
-20.970
-20.522
-19.931
-20.404

13.590
10.319
8.166
6.644
6.295
6.295
5.606
4.840
4.459

1.320
2.720
4.150
5.660
6.080
9.160
10.310
11.910
12.510

MELTING POINT
HEAT OF FUSION

H

728

3.C80 KCAL

-H
298

OEG K

KCAL

BOILING POINT

OEG K

HEAT OF VAPOR.

KCAL

MOLAR VOLUME

0.61489 CAL/BAR

0

TRANSITIONS IN REFERENCE STATE ELEMENTS
SILVER..... M. P. 1234 OEG K.

REFERENCES

74

78
158

158
101

COMPILED
5-06-67

164

. T.HERMODYNAMIC PROPERTIES OF MINERALS

HYDROPHILITE

CaCl 2 :

GRAM FORMULA WEIGHT

Crystals 298.15° to melting point 1055°K.

110.986

Liquid 1055 8 to

1700°K.
TEMP.

H _u
n

OEG K

T 298
(KCAL)

If

S

1G

U

H

T
T 298
(CAL/OEG-GFW)

)/

r

FORMATION FROM THE ELEMENTS
ENTHALPY
FREE ENERGY
(KCAL/GFW)

LOG K

298. 15 0. 000
UNCERTAINTY

27. 20
0. 30

27 .20
0 .30

-190.000
0.150

-179 .255
0 .180

131. 397
0. 132

400
5CO
600
700
800
900
1000

1. 850
3. 700
5. 540
7. 400
9. 290
11. 230
13. 270

32. 53
36. 66
40. 02
42. 68
45. 40
47. 69
*9. 84

27 .90
29 .26
30 .79
32 .31
33 .79
35 .21
36 .57

-189.6*5
-189.333
-189.087

-175 .636
-172 . 17*
-168 .770
~1&5. t.3.9.6.
-162 .056
-158 .7*0
-155 .449

95. 963
75. 257
61. 474
44. 272
38. 5*7
33. 973

1055
1055
1100
1200
1300
1400
15CO
1600
1700

1*.*20
21.200
22.340
24.840
27.320
29.780
32.210
34.580
36.860

50.96
57.38
58.44
60.62
62.60
64.42
66.10
67.63
69.01

37.29
37.29
38.13
39.92
41.58
43.15
44.63
46.02
47.33

-188.090
-181.310
-181.022
-182.182
-181.344
-180.528
-179.744
-179.022
-178.391

-153.650
-153.650

31.829
31.829

-149.777
-147.094
-144.498
-141.943
-139.459
-136.998

27.278
24.729
22.557
20.681

MELTING POINT
HEAT OF FUSION
H

1055

DEC K

6.780 KCAL

-H
298

KCAL

~19.8i.SZQ

-188.701
-188.481
-188.235

5L*. 612

17.612

BOILING POINT

OEG K

HEAT OF VAPOR.

KCAL

MOLAR VOLUME

1.21295 CAL/BAR

0

TRANSITIONS IN REFERENCE STATE ELEMENTS
CALCIUM.... ALPHA-BETA 737, P. P. BETA 1123, B. P. 1756 OEG K.

REFERENCES

74

78

141

COMPILED
6-13-66

PROPERTIES AT HIGH TEMPERATURES

165

GRAM FORMULA WEIGHT

LAWRENCITE

126.753

===i

Crystals 298.15° to melting point 950°K.

Fed

Liquid 950° to

boiling point 1357°K. Ideal gas (monomer) 1347° to 1500°K.
FORMATION FROM THE ELEMENTS
nLI

TEMP.

H

DEC K

T 298


-(G -H
)/T
T
T 298
(CAL/DEG-GFW)

34.02
0.60

34.02
0.60

95.460
0.200

-79.827
0.270

58.515
0.198

41.14
47.13
51.22
69.07
70.34
70.58
79.22
82.36

34.95
36.80
38.44
38.44
39.66
39.89
39.89
45.43

94.887
94.152
93.505
83.205
82.944
82.890
77.660
77.608

-74.569
-69.566
-65.850
-65.850
-65.144
-65.040
-65.040
-62.988

40.743
30.407
24.942
24.942
23.729
23.495
23.495
19.666

MELTING POINT

577

HEAT OF FUSION

10.300 KCAL

HEAT OF VAPOR.

H

4.7100 KCAL

MOLAR VOLUME

-H
298

DEG K

BOILING POINT

605

DEG K

5.230 KCAL
1.3828

CAL/BAR

0

TRANSITIONS IN REFERENCE STATE ELEMENTS
IRON....... CURIE P. 1033t ALPHA-GAMMA 1184, GAMMA-DELTA 1665,
M. P. DELTA 1809 OEG K.

REFERENCES 148

148

94
148

COMPILED
5-06-67

167

PROPERTIES AT HIGH TEMPERATURES
HYDROGEN CHLORIDE (IDEAL GAS)
HC1:

GRAM FORMULA WEIGHT

36.461

Ideal gas 298.15° to 2000°K.

FORMATION FROM THE ELEMENTS
TEMP.

H -H
T 298
(KCAL)

DEC K

S

-(G -H
)/T
T
T 298
(CAL/DEG-GFW)

ENTHALPY
FREE ENERGY
(KCAL/GFW)

LOG K

298.15 0.000
UNCERTAINTY

44.65
O.C1

44.65
O.C1

-22.062
0.150

-22.777
0.160

16.696
0.117

400
500
600
700
800
900
1000

0.710
1.408
2.112
2.823
3.546
4.281
5.030

46.69
48.25
49.53
50.63
51.60
52.46
53.25

44.92
45.44
46. Cl
46.60
47.16
47.71
48.22

-22.128
-22.206
-22.286
-22.365
-22.438
-22.504
-22.561

-23.012
-23.224
-23.420
-23.602
-23.774
-23.937
-24.093

12.573
10.151
8.531
7.369
6.495
5.813
5.266

1100
1200
1300
1400
1500

5.793
6.569
7.356
8.156
8.965

53.98
54.65
55.28
55.88
56.43

48.71
49.18
49.63
50.05
50.46

-22.610
-22.651
-22.687
-22.716
-22.743

-24.244
-24.390
-24.536
-24.675
-24.814

4.817
4.442
4.125
3.852
3.615

1600
1700
1800
1900
2000

9.783
10.610
11.445
12.287
13.135

56.96
57.46
57.94
58.40
58.83

50.85
51.22
51.58
51.93
52.26

-22.768
-22.789
-22.808
-22.825
-22.842

-24.952
-25.087
-25.223
-25.355
-25.488

3.408
3.225
3.062
2.916
2.785

MELTING POINT

DEG K

BOILING POINT

DEG K

HEAT OF FUSION

KCAL

HEAT OF VAPOR.

KCAL

MOLAR VOLUME 584.727

CAL/BAR

H

-H
298

2.C650 KCAL
0

TRANSITIONS IN REFERENCE STATE ELEMENTS

REFERENCES 148

158
148

158

COMPILED
2-12-67

THERMODYNAMIC PROPERTIES OF MINERALS

168

GRAM FORMULA WEIGHT

SYLVITE

KC1:

74.555

Crystals 298.15° to melting point 1044°K. Liquid 1044° to
fictive boiling point 1750°K. Ideal gas (monomer) 1750° to
2000°K.
_u
n

TCMD
1 trtr«

H

DEC K

T 298
(KCAL)

_ It u
r

S

FORMATION FROM THE ELEMENTS
U
n

T
T 298
(CAL/DEG -GFH)

1 /T
9/1

FREE ENERGY
ENTHALPY
(KCAL/GFW)

LOG K

298. 15 0.000
UNCERTAINTY

19.73
0.04

19.73
O.C4

-104.370
0.200

-97.693
0.210

71.611
0.154

400
500
600
700
800
900
1000

1.272
2.561
3.889
5.254
6.664
8.132
9.681

23.40
26.27
28.69
30.80
32.68
34.41
36.04

20.22
21.15
22.21
?3.29
24.35
25.37
26.36

-104.847
-104.728
-104.560
-104.350
-104.095
-103.784
-103.403

-95.321
-92.950
-90.608
-88.304
-86.027
-83.788
-81.585

52.081
40.628
33.004
27.570
23.502
20.346
17.830

1044
1044
1100
1200
1300
1400
1500

10.399
16.681
17.665
19.424
21.183
22.942
24.701

36.74
42.76
43.68
45.21
46.62
47.92
49.13

26.78
26.78
27.62
29.02
30.33
31.53
32.66

-122.242
-115.960
-115.505
-114.693
-113.882
-113.072
-112.263

-80.614
-80.614
-78.742
-75.435
-72.200
-69.018
-65.894

16.876
16.876
15.645
13.739
12.138
10.774
9.601

1600
1700
1750
1750
1800
1900
2000

26.460
28.219
29.099
66.239
66.703
67.630
68.559

50.27
51.33
51.85
73.07
73.33
73.83
74.30

33.73
34.73
35.22
35.22
36.27
38.24
40.02

-111.455
-110.648
-110.245
-73.105
-73.118
-73.147
-73.175

-62.837
-59.813
-58.320
-58.320
-57.911
-57.063
-56.202

8.583
7.689
7.283
7.283
7.031
6.564
6.141

MELTING POINT

HEAT OF FUSION
H

-H
298

1044

DEC K

6.282 KCAL
2.7170 KCAL

BOILING POINT
HEAT OF VAPOR.
MOLAR VOLUME

1750

DEC K

37.140 KCAL
0.89685 CAL/BAR

0

TRANSITIONS IN REFERENCE STATE ELEMENTS
POTASSIUM.. M. P. 336.4, B. P. 1043.7 DEC K.

REFERENCES 148

78
148

148

COMPILED
5-06-67

PROPERTIES AT HIGH TEMPERATURES
CHLOROMAGNESITE

MgCl 2 :

169

GRAM FORMULA WEIGHT

Crystals 298.15° to melting point 987°K.

95.218

Liquid 987° to

boiling point 1710°K.

FORMATION FROM THE ELEMENTS
~U
M

T£MO
I tnr

H

DEG K

T 298
(KCAL)

\ V*

n

1 / I

T
T 298
(CAL/DEG-GFW)

FREE ENERGY
ENTHALPY
(KCAL/GFW)

LOG K

298.15 0.000
UNCERTAINTY

21.42
0.20

21.42
0.20

-153.350
0.110

-141.521
0.130

103.737
0.095

400
500
600
700
800
900
987
987
1000

1.800
3.650
5.555
7.480
9.420
11.380
13.160
23.460
23.750

26.61
30.73
34.21
37.17
39.76
42.07
43.96
54.40
54.69

22.11
23.43
24.95
26.49
27.99
29.43
30.63
30.63
30.94

-153.016
-152.658
-152.288
-151.935 '
-151.603
-151.284
-153.094
-142.794
-142.725

-137.532
-133.700
-129.945
-126.244
-122.600
-118.989
-115.748
-115.748
-115.391

75.144
58.440
47.332
39.415
33.493
28.894
"2"5
."^TO

1100
1200
1300
1400
1500
1600
1700
1710
1710

25.960
28.170
30.380
32.590
34.800
37.010
39.220
39.440
76.780

56.80
58.72
60.49
62.12
63.65
65.08
66.42
66.56
88.40

33.20
35.25
37.12
38.84
40.45
41.95
43.35
43.50 .
43.50

-142.192
-141.662
-141.134
-170.953
-170.146
-169.341
-168.537
-168.457
-131.117

-112.680
-110.028
-107.407
"103:994

22.387
20.039
18. 057
16:534
14.460
12.915
11.558
11.431
11.431

-99.247
-94.554
-89.902
-89.440
-89.440

MELTING POINT

987

HEAT OF FUSION

10.300 KCAL

HEAT OF VAPOR.

H

3.2910 KCAL

MOLAR VOLUME

-H
298

DEC K

BOILING POINT

1710

25.630
25.219

OEG K

37.340 KCAL
0.97538 CAL/BAR

0

TRANSITIONS

IN REFERENCE STATE ELEMENTS

MAGNESIUM..

REFERENCES

74

M.

P.

922,

78
148

B. P.

1363 DEC K.

141
148

COMPILED
4-15-67

170

THERMODYNAMIC PROPERTIES OF MINERALS

SCACCHITE
MnCl 2 :

GRAM FORMULA WEIGHT

Crystals 298.15° to melting point 923°K.

125.844

Liquid 923° to

1400°K.
FORMATION FROM THE ELEMENTS
T CUD

_LJ

n

S

1 tnr

H

DEG K

T 298
(KCAL)

(G -H
)/T
T
T 298
(CAL/DEG-GFW)

ENTHALPY
FREE ENERGY
(KCAL/GFH)

LOG K

298. 15 0.000
UNCERTAINTY

28.26
0.05

28.26
0.05

-115.038
0.200

-105.295
0.210

77.183
0.154

400
500
600
700
800
900
923
923
1000

1.850
3.730
5.640
7.590
9.600
11.680
12.170
21.140
22.880

33.59
37.78
41.26
44.27
46.95
49.40
49.94
59.66
61.47

28.96
30.32
31.86
33.43
34.95
36.42
36.76
36.76
38.59

-114.723
-114.391
-114.155
-113.788
-113.484
-113.149
-113.072
-104.102
-104.258

-102.014
-98.872
-95.866
-92.778
-89.799
-86.856
-86.186
-86.186
-84.712

55.738
43.217
34.919
28.967
24.532
21.091
20.407
20.407
18.514

1100
1200
1300
1400

25.140
27.400
29.660
31.920

63.62
65.59
67.40
69.07

40.77
42.76
44.58
46.27

-103.800
-103.345
-102.907
-103.056

-82.767
-80.888
TZ9.03L
-77.190

16.444
14.732
13.286
12.050

MELtlNG POINT
HEAT OF FUSION
H

-H
298

923

DEG K

8.970 KCAL
3.6020 KCAL

BOILING POINT

DEG K

HEAT OF VAPOR.

KCAL

MOLAR VOLUME

1.0064

CAL/BAR

0

TRANSITIONS IN REFERENCE STATE ELEMENTS
MANGANESE..

REFERENCES

74

ALPHA-BETA 990, GETA-GAMMA 1360, GAMMA-DELTA 1410,
M. P. DELTA 1517 DEG K.

21

94

COMPILED
2-12-67

PROPERTIES AT HIGH TEMPERATURES

171

GRAM FORMULA WEIGHT

SALAMMONIAC

53.491

= = 3* = = r;e = = z

NH.C1:

a crystals (CaCl structure) 298.15° to 457. 7°K.
0 crystals (rock salt structure) 457.7° to 500°K.
FORMATION FROM THE ELEMENTS

TEMP.

H -H

OEG K

T 298
(KCAL)

>

-(G -H
)/T
T
T 298
(CAL/DEG-GFW)

ENTHALPY
FREE ENERGY
(KCAL/GFW)

LOG K

298.15 0.000
UNCERTAINTY

22.70
l.CO

22.70
l.CO

75.180
0.200

48.572
0.360

35.604
0.264

2.340
3.810

29.43
32.86
34.91

23.58
24.53
24.53

75.031

36.79

25.49

73.897

39.498
34.260
34.260
30.733

21.580
16.359
16.359
13.433

400
457.7
500

4.750
5.650

74.945
74.905

MELTING POINT

DEG K

BOILING POINT

OEG K

HEAT OF FUSION

KCAL

HEAT OF VAPOR.

KCAL

KCAL

MOLAR VOLUME

H

-H
298

5.425

0.83795 CAL/BAR

0

TRANSITIONS IN REFERENCE STATE ELEMENTS

REFERENCES 148

148
158

148
158

COMPILED
4-15-67

THERMODYNAMIC PROPERTIES OF MINERALS

172
HALITE

NaCl:

GRAM FORMULA WEIGHT

58.443

Crystals 298.15° to melting point 1073.8°K. Liquid 1073.8°
to fictive boiling point 1791°K. Ideal gas (monomer) 1791°
to 2000°K.
FORMATION FROM THE ELEMENTS
a
T 298
(KCAL)

OEG K

- lu -n
ii \
T
T 298
(CAL/DEG-GFM

ENTHALPY
FREE ENERGY
(KCAL/GFW)

LOG K

298.15 0.000
UNCERTAINTY

17.24
0.05

17. 24
0. 05

-98. 260
0. 300

-91. 807
0. 310

67. 296
0. 227

400
500
600
700
800
900
1000

1.253
2.523
3.831
5.177
6.568
8.015
9.529

20.85
23.68
26.07
28.14
30.00
31.70
33.29

17.72
18.63
19.68
20*74
21.79
22.79
23.76

-98.785
-98.683
-98.530
-98.329
-98.076
-97.764
-97.387

-89.570
-87.275
-85.010
-82.771
-80.567
-78.392
-76.255

48.938
38.148
30.965
25.842
22.010
19.036
16.666

1073.8
1073.8
1100
1200
1300
1400
1500

10.695
17.425
17.854
19.506
21.128
22.735
24.336

34.42
40.69
41.10
42.53
43.83
45.02
46.13

24.46
24.46
24.87
26.27
27.58
28.78
29.91

-97.060
-90.330
-90.207
-112.945
-112.271
-111.613
-110.962

1600
1700
1791
1791
1800
1900
2000

25.936
27.536
28.992
68.377
68.460
69.384
70.309

47.16
48.13
48.96
70.95
71. CO
71.49
71.97

30.95
31.93
32.77
32.77
32.97
34.97
36.82

-110.313
-109.663
-109.075
-69.690
-69.692
-69.721
-69.751

MELTING POINT
HEAT OF FUSION
H

-H
298

1073.8

DEG K

6.730 KCAL
2.5360 KCAL

-74.710
15.206
-74.710
15.206
.__-74._354__ ll'-lU
-72.469
13.198
-69.125
11.621
-65.830
10.277
9.119
-62.591
-59.383
-56.218
-53.376
-53.376
-53.290
-52.358
-51.456

BOILING POINT
HEAT OF VAPOR.
MOLAR VOLUME

1791

8.111
7.227
6.513
6.513
6.470
6.023
5.623

OEG K

39.385 KCAL
0.64567 CAL/BAR

0

TRANSITIONS IN REFERENCE STATE ELEMENTS
SODIUM..... M. P. 370.98, B. P. 1176.9 OEG K.

REFERENCES 148

148

148

COMPILED
5-06-67

PROPERTIES AT HIGH TEMPERATURES
COTUNNITE

173

GRAM FORMULA HEIGHT

278.096

a 33 B 3333 3333,3 SjSB 33 33 33 33 = 333 = =3.3 =33333 3.333=333333== = = 3333333333333

PbCl 2 :

Crystals 298.15° to melting point 768°K.

Liquid 768° to

1000°K.
FORMATION FROM THE ELEMENTS
TEMP.

H -H
T 298
(KCAL)

DEC K

298.15 0.000
UNCERTAINTY
400
500
600
700
768

1.920
3.830
5.890
8.040
9.505
15.205
16.060
18.780
21.500

768
800
900

1000

MELTING POINT
HEAT OF FUSION
H

-H
298

-CG -H
1/T
T
T 298
(CAL/DEG-GFW)

ENTHALPY
FREE ENERGY
(KCAL/GFW)

LOG K

32.50
0.50

32.50
0.50

86.200
0.070

75.366
0.170

55.244
0.125

38.04
42.30
46.05
49.36
51.35
58.77
59.85
63.05
65.91

33.24
34.64
36.23
37.87
38.97
38.97
39.78
42.18
44.41

85.780
85.388
84.890
85T491"
85.140

71.731
68.264
64.885

39.192
29.838
23.634
'197170
16.807
16.807
15.905

768

DEC K

5.700 KCAL
4.C490 KCAL

79.440
79.081
77.963
76.843

-59.060
59.060
58.220
55.675
53.257

13.520
11.639

BOILING POINT

DEG K

HEAT OF VAPOR.

KCAL

MOLAR VOLUME

1.1254

CAL/BAR

0

TRANSITIONS IN REFERENCE STATE ELEMENTS
LEAD....... M. P. 600.6, 8. P. 2023 OEG K.

REFERENCES

74

78
159

148
159

COMPILED
4-15-67

174

THERMODYNAMIC PROPERTIES OF MINERALS

FLUORITE

CaF :

GRAM FORMULA WEIGHT

Crystals I 298.15° to transition point 1424°K.
1424° to melting point 1691°K.

78.077

Crystals II

Liquid 1691° to 2000°K.
FORMATION FROM THE ELEMENTS

" nu
H _
T 298


DEG K

T 298
(KCAL)

423
500
600
700
800

ENTHALPY
FREE ENERGY
(KCAL/GFW)

LOG K

27.60
0.40

27.60
0.40

-14.780
0.400

-15.830
0.420

11.604
0.308

1.450
1.810

31.77

28.14

32.64

28.36

-16.553
-16.730

-16.137
-16.080

-15.260
r 20r6"64"

-16.080
~-15.~835'

8.817
8.308
8.308

-19.803
-19.552

-15.024

-19.313

-13.489

298il5 0.000
UNCERTAINTY

400
423

-

522

DEG K

4.500 KCAL
KCAL

-20.685
-20.685

9.374
8.644
8.644
6.824

BOILING POINT

627

HEAT OF VAPOR.

14.141 KCAL

MOLAR VOLUME

1.7170

DEG K

CAL/8AR

0

TRANSITIONS IN REFERENCE STATE ELEMENTS
MERCURY.... B. P. 629.73 DEG K.
IODINE..... M. P. 366.75, B. P. 458.39 DEG K.

REFERENCES

74

141
148

COMPILED
4-10-67

THERMODYNAMIC PROPERTIES OF MINERALS

180

GRAM FORMULA WEIGHT

WITHERITE

BaCO :

Orthorhombic crystals 298.15° to 1079°K.

197.349

Tetragonal

crystals 1079° to 1241°K. Cubic crystals 1241° to 1600°K.
FORMATION FROM THE ELEMENTS
TEMP.

H -H
T 298
(KCAL)

DEG K

S

-(G -H
)/T
T
T 298
(CAL/DEG-GFK)

ENTHALPY
FREE ENERGY
(KCAL/GFW)

298.15 0. 000
UNCERTAINTY

26,.80
0,,50

26 .80
0 .50

-297.460
0.870

400
500
600
700
800
900
1000

2. 300
4. 730
7. 330
10. 080
12. 980
16. 020
19. 190

33,,41
38,.83
43,.56
47,.80
51,.67
55,.25
58,.59

27 .66
29 .37
31 .34
33 .40
35 .44
37 .45
39 .40

-297.152
-296.815
-296.438
-296.155
-295.684
-295.195
-296.-48T"'

1079
1079
1100
1200
1241
1241
1300
1400
1500
1600

21.790
26.280
27.060
30.760
32.270
33.000
35.240
39.040
42.840
46.640

61.09
65.25
65.97
69.19
70.42
71.01
72.78
75.59
78.21
80.66

40.90
40.90
41.37
43.56
44.42
44.42
45.67
47.70
49.65
51.51

-295.873
-291.383
-291.143
-290.001
-289.552
-288.822
-288.105
-286.907
-285.728
-284.563

-278 .359
0 .930

LOG K
204. 042
0. 682

148. 543
-271 .871
-265 .591
116. 090
-259 .377
72 15" 94. 478
79. 057
-253
67. 508
-247 .115
-241 .076
58. 541
""5f.
JT2
"-23?. 058
-230.213
-230.213
-229.038
-223.445
-221.200
-221.200
-217.982°
-212.617
-207.361
-202. 162

46.629
46.629
45.505
40.695
38.953
38.953
36.646
33.191
30.212
27.614

MELTING POINT

OEG K

BOILING POINT

DEG K

HEAT OF FUSION

KCAL

HEAT OF VAPOR.

KCAL

H

KCAL

MOLAR VOLUME

-H
298

1.0948

CAL/BAR

0

TRANSITIONS IN REFERENCE STATE ELEMENTS
BARIUM..... ALPHA-BETA 643, K. P. BETA 983, B. P. 1895 DEG K.

78

4
98

COMPILED
1-12-67

PROPERTIES AT HIGH TEMPERATURES
ARAGONITE
*===*===*===
CaC0 3 :

181

GRAM FORMULA WEIGHT

100.089

Crystals 298.15° to 1000°K.

FORMATION FROM THE ELEMENTS
TEMP.

H -H
T 298
(KCAL)

OEG K

>

-(G -H
)/T
T
T 298
(CAL/DEG-GFVO

ENTHALPY
FREE ENERGY
(KCAL/GFW)

LOG K

298.15 0.000
UNCERTAINTY

21.18
0.30

21.18
0.30

288.651
0.340

269.678
0.350

197.679

400
500
600
700
800
900
1000

27.31
32.45

21.98
23.57
25.43
27.37

288.507
288.297
288.073
287.830
: 287760l"
287.299
287.005

263.214
256.913
250.658
244.442
: 23§7264"
232.109
225.992

143.813

2.130
4.440
6.900
9.500
12.220
15.060
18.000

36.93
40.94
44.57
47.91

51.01

29.29

31.18
33.01

0.257
112.296
91.302
_76.318
657690
56.364
49.390

MELTING POINT

DEC K

BOILING POINT

DEG K

HEAT OF FUSION

KCAL

HEAT OF VAPOR.

KCAL

H

KCAL

MOLAR VOLUME

-H
298

0.81620 CAL/BAR

0

TRANSITIONS IN REFERENCE STATE ELEMENTS
CALCIUM.... ALPHA-BETA 737, K. P. BETA 1123, B. P. 1756 OEG K.

REFERENCES'

74

78

43
100

COMPILED
8- 9-66

THERMODYNAMIC PROPERTIES OF MINERALS

182
CALCITE
CaCO 3 :

GRAM FORMULA WEIGHT

100.089

Crystals 298.15° to 1400°K.

FORMATION FROM THE ELEMENTS
TEMP.

H -H

J

DEG K

T 298
(KCAL)

-

- )

:

GRAM FORMULA WEIGHT

261.350

Crystals 298.15° to melting point 865°K.

FORMATION FROM THE ELEMENTS
TEMP.

H -H
T
298
(KCAU

DEG K

-(G -H
)/T
T
T
2<38
(CAL/DEG-GFVO

ENTHALPY
FREE ENERGY
(KCAL/GFW)

LOG K

51.14
0.20

51.14
0.20

237.060
0.500

190.066
0. 590

139.322
0.432

52.63
55.62
59.17
62.91

236.638

18.460

62.53
72.44
81.24
89.28

24.070

96.76

66.67

174.063
158.513
143.166
I2875l4~
113.080

95.103
69.286
52.148
'"397968
30.892

298.15
0.000
UNCERTAINTY
400
500
600
700
800

5

3.960

8.410
13.240

MELTING POINT

865

235.762
234.621
: 233l338~
231.638

DEC, K

BOILING POINT

OEG K

HEAT OF FUSION

KCAL

HEAT OF VAPOR.

KCAL

H

KCAL

MCLAR VOLUME

-H
298

1.9259

CAL/BAR

0

TRANSITIONS IN REFERENCE STATE ELEMENTS
BARIUM..... ALPHA-BETA 643, M. P. BETA 983, B. P. 1895 DEG K.

REFERENCES

74

78

141

COMPILED
2-12-67

188

THERMODYNAMIC PROPERTIES OF MINERALS

NITER

GRAM FORMULA WEIGHT

KNO 3 :

Orthorhombic crystals 298.15° to 401°K.

101.107

Rhombohedral

crystals 401° to melting point 610°K. Liquid 610° to 700°K.
FORMATION FROM THE ELEMENTS
TEMP.

H -H
T 298
(KCAL)

DEC K

S

-

OEG K

>

-(G -H
)/T
T
T 298
(CAL/OEG-GFW)

ENTHALPY
FREE ENERGY
(KCAL/GFW)

LOG K

298.15 0.000
UNCERTAINTY

25.50
0.40

25.50
0.40

343.321
1.010

316.475
1.000

231.982
0.733

400
500
600
700
800
900
1000

,600
,200
,050
11 ,250
14.850
18.800
22.850

32.99
38.78
43.97
48.90
53.70
58.35
62.61

26.49
28.38
30.55
32.83
35.14
37.46
39.76

-343.928
344.414
344.655
344.576
357.232
-356.178
-355.123

-307.268
-298.046
-298.746
-279.431
-271.369
-260.694
-250.131

167.883
130.275
105.175
87.242
74.134
63.305
54.666

1100
1200
1300
1400

27.000
31.300
35.800
40.500

66.57
70.31
73.91
77.39

42.02
44.23
46.37
48.46

-354.054
-354.654
-353.053
-351.268

-239.697
-229.213
-218.811
-208.560

47.623
41.745
36.785
32.558

MELTING POINT
HEAT OF FUSION
H

1723

OEG K

6.700 KCAL

-H
298

KCAL

BOILING POINT

DEG K

HEAT OF VAPOR.

KCAL

MOLAR VOLUME

1.0979

CAL/BAR

0

TRANSITIONS IN REFERENCE STATE ELEMENTS
CALCIUM.... ALPHA-BETA 737 t I*. P. BETA 1123, B. P. 1756 OEG K.
SULFUR..... ORTHO-MONO 368.54, M. P. MONO 388.36,
B. P. 717.75 DEG K.

REFERENCES

74

78

135
29

COMPILED
4-15-67

PROPERTIES AT HIGH TEMPERATURES
ARCAN ITE
======
V°4 :

193

GRAM FOR MULA WEIGHT

174.266

= = = =s== = = = = = = = = = = = = =

Orthorlicrnbic crystals (o) 298.15° to 8 56°K. Hexagonal
crystalLs (0) 856° to melt:inq point 134 2°K. Liquid 1342°
to 1701D°K.
FORMATION FROM THE ELEMENTS

TEMP.

H -H
T 298
(KCAL)

DFG K

S

-

-2 at approximately 1949°K.
FORMATION FROM THE ELEMENTS
TEMP.

H -H
T 298
(KCAL)

DEC K

S
T 298
T
(CALX OEG-GFW)

298. 15 0.000
UNCERTAINTY

20. C8
0.30

20.08
0.30

400
SCO
600
700
800
900
1000

2.620
5.460
8.550
11.800
15.180
18.640
22.140

27.61
33.94
39.56
44.58
49.09
53.16
56.85

21.06
23.02
25.31
27.73
30.12
32.45
34.71

1100
1200
1300
1400
1500

25.670
29.220
32.790
36.380
39.990

60.21
63.30
66.16
68.82
71.31

36.88
38.95
40.94
42.84
44.65

1600
1700
1800
1900
2000

43.630
47.290
50.980
54.690
58.420

73.66
75.88
77.99
79.99
81.90

46.39
48. C7
49.67
51.21
52.69

ENTHALPY
FREE ENERGY
(KCAL/GFW)

LOG K

-

MELTING POINT

DEG K

BOILING POINT

DEG K

HEAT OF FUSION

KCAL

HEAT OF VAPOR.

KCAL

KCAL

MOLAR VOLUME

H

-H
298

3.562

0.93834 CAL/BAR

0

TRANSITIONS IN REFERENCE STATE ELEMENTS
SILICON.... M. P. 1685 OEG K.
ZIRCONIUM.. ALPHA-BETA 1143.2, M. P. BETA 2128.2 OEG K.

78
148

COMPILED
4-15-67

218

THERMODYNAMIC PROPERTIES OF MINERALS

WOLLASTONITE

GRAM FORMULA WEIGHT

CaSi0 3 :

Pseudowollastonite is the

Crystals 298.15°-to 1400°K.

116.164

stable phase above 1398°K.
FORMATION FROM THE ELEMENTS
i

T 298
(KCAL)

DEG K

- Ib -n
1/
T
T 298
ICAL/DEG-GFW)

ENTHALPY
FREE ENERGY
(KCAL/GFW)

LOG K

298.15 0.000
UNCERTAINTY

19 .60
0 .20

19. 60
0. 20

4CO
500
6CO
700
800
900
1000

2.300
4.780
7,390
10.140
13.000
15.890
18.810

26.21
31.74
36.49
40.72
44.54
47.94
51.02

20.46
22.18
24.17
26.23
28.29
30.28
32.21

1100
1200
1300

21.770
24.800
27.880

53.84
56.48
58.94

34. C5
35.81
37.49

-389.339 "-316.294
-590798T~ -3ff9.-??9"-390.584
-302.743

62.842
56T3T3
50.896

1400

31.000

61.25

39.11

-390.158

46.209

-390. 640
0. 870

390.592
390.439
390.259
390.032
: 38978l5"
389.591
389.441

-370. 263
0. 880

271. 410
0. 645

363.302
356.499

198.499
155.825
127.387
107.084
"~9ll868

349.726

342.983
: 3367282~
329.599
322.935

-296.008

80.037
70.577

MATING POINT

DEC K

BOILING POINT

DEG K

HEAT OF FUSION

KCAL

HEAT OF VAPOR.

KCAL

H

KCAL

MOLAR VOLUME

-H
298

0.95435 CAL/BAR

0

TRANSITIONS IN REFERENCE STATE ELEMENTS
CALCIUM.... ALPHA-BETA 737, H. P. BETA 1123, B. P. 1756 OEG K.
SILICON.... M. P. 1685 DEG K.

REFERENCES

74

78

152
16

COMPILED
4-29-67

219

PROPERTIES AT HIGH TEMPERATURES
PSEUOOWOLLASTONITE
CaSi0 3 :

GRAM FORMULA WE IGHT

116.164

Crystals 298.15° to melting point 1817°K.

FCRMATION FROM THE ELEMENTS
TEMP.

H -H
T 298
(KCAL)

DEC K

S

-(G -H
)/T
T
T 298
(CAL/DEG-GFW)

ENTHALPY
FREE ENERGY
(KCAL/GFW)

LOG K

298.15 0.000
UNCERTAINTY

20.90
0.20

20.90
0.20

-389.070
0.620

-369.081
0.630

270.543
0.462

400
500
600
700
800
9CO
10CO

2.290
4.710
7.330
10.040
12.840
15.710
18.630

27.49
32.88
37.66
41.83
45.57
48.94
52.02

21.76
23.46
25.44
27.49
29.52
31.48
33.39

-389.032
-388.939
-388.749
-38-8.562

-362.254
-355.569
-348.918
-342.290
""-335". 696
-329. 109
-322.545

197.926
155.419
127.093
106.867
91.708
79.918
70.492

1100
1200
1300
1400
1500
1600
17CO

21.590
24.580
27.610
30.690
33.810
36.970
40.170

54.84
57.45
59.87
62.15
64.31
66.34
68.28

35.21
36.97
38.63
40.23
41.77
43.23
44.65

-387.949
-316.004
.-3-4-3
-3~ff9T6Tr~~ "-3-0-9

MELTING POINT
HEAT OF FUSION
H

1817

OEG K

6.550 KCAL

-H
298

KCAL

-jw.-«ff~
-388.201
-388.051

-389.284
-388.898
-388.489
-388.054
-399.663

-302.652
-296.008
-289.396
-282.805
-276. 136

62.784
56.339
50.880
46.209
42*165
38*629
3 5 £500

BOILING POINT

OEG K

HEAT OF VAPOR.

KCAL

MCLAR VOLUME

0.95794 CAL/BAR

0

TRANSITIONS IN REFERENCE STATE ELEMENTS
CALCIUM.... ALPHA-BETA 737, M. P. BETA 1123, B. P. 1756 DEG K.
SILICON.... M. P. 1685 DEG K.

REFERENCES

74

78

75

COMPILED
4-29-67

220

THERMO DYNAMIC PROPERTIES OF MINERALS

CALCIUM-ALUMINUM PYROXENE
CaAl.SiCK:
i

D

GRAM FORMULA WEIGHT

218.125

Crystals 298.15° to 1700°K.

FORMATION FROM THE ELEMENTS
H -H
T 298
(KCAL)

TEMP.
DEG K

S

-(G -H
»/l
T
T 298
(CAL/DEG-GFW)

ENTHALPY
FREE ENERGY
(KCAL/GFW)

LOG K

298.15 0.000
UNCERTAINTY

34.60
0.80

34.60
0.80

-786.984
0.660

-745.130
0.710

546.194
0.520

400
500
600
700
800
900
1000

4.437
9.287
14.523
19.980
25.618
31.395
37.274

47.35
58.16
67.70
76.10
83.63
90.43
96.19

36.26
39.58
43.50
47.5/>
51.61
55.54
58.92

-787.105
-766.941
-786.585
-786.188

-731.016
-716.739
-702.737
-688.787

399.408
313.286
255.971
_215.048

-785.458
-790.256

-661.052
-646.440

160.525
141.279

1100
1200
13CO
1400
1500
1600
1700

43.234
49.257
55.345
61.504
67.720
73.990
80.310

102.30
107.55
112.42
116.98
121.28
125.31
129.15

63. CO
66.50
69.85
73. C5
76.13
79.07
81.90

-789.930
-791.375
-790.766
-790.115
-789.434
-788.723
-800.053

-632.554
-618.137
-603.710
-589.351
-575.045
-560.774
-546.445

125.677
112.578
101.493
92.002
83.784
76.598
70.250

MELTING POINT

DEG K

BOILING POINT

OEG K

HEAT OF FUSION

KCAL

HEAT OF VAPOR.

KCAL

H

KCAL

MOLAR VOLUME

-H
298

1.5176

CAL/BAR

0

ALUMINUM... M. P. 933 DEG K.
CALCIUM.... ALPHA-BETA 737, P. P. BETA 1123, B. P. 1756 DEG K,
SILICON.... M. P. 1685 OEG K.

REFERENCES 163

57

COMPILED
4-29-67

PROPERTIES AT HIGH TEMPERATURES
OIOPSIDE

221

GRAM. FORMULA WEIGHT

CaMg(SiO ) 2 :

216.560

Crystals 298.15° to melting point 1664°K

FORMATION FROM THE ELEMENTS
H -H
T 298
(KCAL)

TEMP.
OEG K

S

-(G -H
)/ T
T
T 298
(CAL/DEG-GFV.)

ENTHALPY
FREE ENERGY
.(KCAL/GFW)

LOG K

298.15 0.000
UNCERTAINTY

34.20
0.20

34.20
0.20

-767.390
2.180

-725.784
2.190

532.012
1.605

400
500
600
700
800
900
1000

4.320
8.940
14.060
19.540
25.420
31.340
37.280

46.61
56.90
66.24
74.66
82.52
89.48
95.74

35.81
39.02
42.81
46.75
50.74
54.66
58.46

-767.545
-767.534
-767.214
-766.709
-765.992
-765.335
-766.953

-711.533
-697.528
-683.562
-669.642
-655.841
-642.093
-628.241

388.763
304.888
248.987
209.071
179.167
155.921
137.302

1100
1200
1300
1400
1500
1600

43.250
49.250
55.300
61.440
67.660
73.980

101.43
106.65
111.49
116. C4
120.34
124.41

62.11
65.61
68.95
72.15
75.23
78.17

-766.518
-767.894
-767. ?39
-796.872
-795.830
-794.718

-614.389
-600.454
-586.512
-571.815
-555.799
-539.840

122.068
109.357
98.601
89.264
80.980
73.738

MELTING POINT
HEAT OF FUSION
H

1664

DEG K

18.500 KCAL

-H
298

KCAL

BOILING POINT

OEG K

HEAT OF VAPOR.

KCAL

MOLAR VOLUME

1.5795

CAL/BAR

0

TRANSITIONS IN REFERENCE STATE ELEMENTS
CALCIUM.... ALPHA-BETA 737, P. P. BETA 1123, B. P. 1756 DEG K.
PAGNESIUM.. M. P. 922, 8. P. 1363 OEG K.
SILICON.... M. P. 1685 DEG K.

REFERENCES

74

78

95
116

COMPILED
4-29-67

THERMODYNAMIC PROPERTIES OF MINERALS

222

CLINOENSTATITE

MgSiO :

TEMP.

100.396

Crystals 298.15° to melting point 1830°K.

H -H
T 298
(KCAL)

DEC K

GRAP FORMULA WEIGHT

S

-
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