magnesium sulphate
- Formula: MgO4S
- Molecular weight: 120.368
- IUPAC Standard InChI: InChI=1S/Mg.H2O4S/c;1-5(2,3)4/h;(H2,1,2,3,4)/q+2;/p-2
- IUPAC Standard InChIKey: CSNNHWWHGAXBCP-UHFFFAOYSA-L
- CAS Registry Number: 7487-88-9
- 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: Sulfuric acid magnesium salt (1:1); Magnesium sulfate
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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) | 1400. to 2500. |
|---|---|
| A | 158.9920 |
| B | 0.000000 |
| C | 0.000000 |
| D | 0.000000 |
| E | 0.000000 |
| F | -1314.893 |
| G | 251.8454 |
| H | -1246.589 |
| Reference | Chase, 1998 |
| Comment | Data last reviewed in March, 1966 |
| Temperature (K) |
Cp (J/mol*K) |
S° (J/mol*K) |
-(G° - H°298.15)/T (J/mol*K) |
H° - H°298.15 (kJ/mol) |
|---|---|---|---|---|
| 1400. | 159.0 | 305.3 | 195.1 | 154.3 |
| 1500. | 159.0 | 316.3 | 202.9 | 170.2 |
| 1600. | 159.0 | 326.6 | 210.3 | 186.1 |
| 1700. | 159.0 | 336.2 | 217.4 | 202.0 |
| 1800. | 159.0 | 345.3 | 224.3 | 217.9 |
| 1900. | 159.0 | 353.9 | 230.9 | 233.8 |
| 2000. | 159.0 | 362.1 | 237.2 | 249.7 |
| 2100. | 159.0 | 369.8 | 243.3 | 265.6 |
| 2200. | 159.0 | 377.2 | 249.3 | 281.5 |
| 2300. | 159.0 | 384.3 | 255.0 | 297.4 |
| 2400. | 159.0 | 391.0 | 260.5 | 313.3 |
| 2500. | 159.0 | 397.5 | 265.9 | 329.2 |
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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