Nickel sulfide
- Formula: NiS2
- Molecular weight: 122.823
- CAS Registry Number: 12035-51-7
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Condensed phase thermochemistry data
Go To: Top, References, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔfH°liquid | -15.91 | kcal/mol | Review | Chase, 1998 | Data last reviewed in March, 1977 |
| Quantity | Value | Units | Method | Reference | Comment |
| S°liquid,1 bar | 29.261 | cal/mol*K | Review | Chase, 1998 | Data last reviewed in March, 1977 |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔfH°solid | -31.401 | kcal/mol | Review | Chase, 1998 | Data last reviewed in March, 1977 |
| Quantity | Value | Units | Method | Reference | Comment |
| S°solid | 17.20 | cal/mol*K | Review | Chase, 1998 | Data last reviewed in March, 1977 |
Liquid Phase Heat Capacity (Shomate Equation)
Cp° = A + B*t + C*t2 + D*t3 +
E/t2
H° − H°298.15= A*t + B*t2/2 +
C*t3/3 + D*t4/4 − E/t + F − H
S° = A*ln(t) + B*t + C*t2/2 + D*t3/3 −
E/(2*t2) + G
Cp = heat capacity (cal/mol*K)
H° = standard enthalpy (kcal/mol)
S° = standard entropy (cal/mol*K)
t = temperature (K) / 1000.
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| Temperature (K) | 1280. to 1800. |
|---|---|
| A | 21.75000 |
| B | -0.000002 |
| C | 0.000001 |
| D | -2.284290×10-7 |
| E | -2.372091×10-7 |
| F | -24.53191 |
| G | 51.44030 |
| H | -15.91010 |
| Reference | Chase, 1998 |
| Comment | Data last reviewed in March, 1977 |
Solid Phase Heat Capacity (Shomate Equation)
Cp° = A + B*t + C*t2 + D*t3 +
E/t2
H° − H°298.15= A*t + B*t2/2 +
C*t3/3 + D*t4/4 − E/t + F − H
S° = A*ln(t) + B*t + C*t2/2 + D*t3/3 −
E/(2*t2) + G
Cp = heat capacity (cal/mol*K)
H° = standard enthalpy (kcal/mol)
S° = standard entropy (cal/mol*K)
t = temperature (K) / 1000.
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| Temperature (K) | 298. to 1280. |
|---|---|
| A | 15.40000 |
| B | 4.962551 |
| C | -0.002183 |
| D | 0.000614 |
| E | 0.000054 |
| F | -36.21200 |
| G | 34.35729 |
| H | -31.40010 |
| Reference | Chase, 1998 |
| Comment | Data last reviewed in March, 1977 |
References
Go To: Top, Condensed phase thermochemistry data, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Chase, 1998
Chase, M.W., Jr.,
NIST-JANAF Themochemical Tables, Fourth Edition,
J. Phys. Chem. Ref. Data, Monograph 9, 1998, 1-1951. [all data]
Notes
Go To: Top, Condensed phase thermochemistry data, References
- Symbols used in this document:
S°liquid,1 bar Entropy of liquid at standard conditions (1 bar) S°solid Entropy of solid at standard conditions ΔfH°liquid Enthalpy of formation of liquid at standard conditions ΔfH°solid Enthalpy of formation of solid at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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