silicon disulphide
- Formula: S2Si
- Molecular weight: 92.215
- IUPAC Standard InChI: InChI=1S/S2Si/c1-3-2
- IUPAC Standard InChIKey: KHDSWONFYIAAPE-UHFFFAOYSA-N
- CAS Registry Number: 13759-10-9
- Chemical structure:
This structure is also available as a 2d Mol file or as a computed 3d SD file
The 3d structure may be viewed using Java or Javascript. - Other names: Silicon sulfide
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Liquid Phase Heat Capacity (Shomate Equation)
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.
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 (J/mol*K)
H° = standard enthalpy (kJ/mol)
S° = standard entropy (J/mol*K)
t = temperature (K) / 1000.
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| Temperature (K) | 1363. to 2000. |
|---|---|
| A | 91.00200 |
| B | 0.000000 |
| C | 0.000000 |
| D | 0.000000 |
| E | 0.000000 |
| F | -240.0683 |
| G | 183.0881 |
| H | -206.9243 |
| Reference | Chase, 1998 |
| Comment | Data last reviewed in June, 1972 |
| Temperature (K) |
Cp (J/mol*K) |
S° (J/mol*K) |
-(G° - H°298.15)/T (J/mol*K) |
H° - H°298.15 (kJ/mol) |
|---|---|---|---|---|
| 1363. | 91.00 | 211.3 | 144.6 | 90.89 |
| 1400. | 91.00 | 213.7 | 146.4 | 94.26 |
| 1500. | 91.00 | 220.0 | 151.1 | 103.4 |
| 1600. | 91.00 | 225.9 | 155.6 | 112.5 |
| 1700. | 91.00 | 231.4 | 159.9 | 121.6 |
| 1800. | 91.00 | 236.6 | 164.0 | 130.7 |
| 1900. | 91.00 | 241.5 | 167.9 | 139.8 |
| 2000. | 91.00 | 246.2 | 171.7 | 148.9 |
References
Go To: Top, Liquid Phase Heat Capacity (Shomate Equation), 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, Liquid Phase Heat Capacity (Shomate Equation), References
- Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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