Magnesium fluoride
- Formula: F2Mg
- Molecular weight: 62.3018
- IUPAC Standard InChI: InChI=1S/2FH.Mg/h2*1H;/q;;+2/p-2
- IUPAC Standard InChIKey: ORUIBWPALBXDOA-UHFFFAOYSA-L
- CAS Registry Number: 7783-40-6
- Chemical structure:
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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 | -1072.36 | kJ/mol | Review | Chase, 1998 | Data last reviewed in June, 1975 |
| Quantity | Value | Units | Method | Reference | Comment |
| S°liquid,1 bar | 89.93 | J/mol*K | Review | Chase, 1998 | Data last reviewed in June, 1975 |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔfH°solid | -1124.2 ± 1.2 | kJ/mol | Review | Cox, Wagman, et al., 1984 | CODATA Review value |
| ΔfH°solid | -1124.24 | kJ/mol | Review | Chase, 1998 | Data last reviewed in June, 1975 |
| Quantity | Value | Units | Method | Reference | Comment |
| S°solid,1 bar | 57.2 ± 0.5 | J/mol*K | Review | Cox, Wagman, et al., 1984 | CODATA Review value |
| Quantity | Value | Units | Method | Reference | Comment |
| S°solid | 57.17 | J/mol*K | Review | Chase, 1998 | Data last reviewed in June, 1975 |
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 (J/mol*K)
H° = standard enthalpy (kJ/mol)
S° = standard entropy (J/mol*K)
t = temperature (K) / 1000.
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| Temperature (K) | 1536. to 3000. |
|---|---|
| A | 94.92199 |
| B | -5.302467×10-8 |
| C | 2.126544×10-8 |
| D | -2.906320×10-9 |
| E | -1.298504×10-8 |
| F | -1114.823 |
| G | 178.2443 |
| H | -1072.355 |
| Reference | Chase, 1998 |
| Comment | Data last reviewed in June, 1975 |
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 (J/mol*K)
H° = standard enthalpy (kJ/mol)
S° = standard entropy (J/mol*K)
t = temperature (K) / 1000.
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| Temperature (K) | 298. to 1536. |
|---|---|
| A | 68.55149 |
| B | 22.72586 |
| C | -12.16218 |
| D | 2.573717 |
| E | -1.140865 |
| F | -1149.445 |
| G | 127.4522 |
| H | -1124.241 |
| Reference | Chase, 1998 |
| Comment | Data last reviewed in June, 1975 |
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]
Cox, Wagman, et al., 1984
Cox, J.D.; Wagman, D.D.; Medvedev, V.A.,
CODATA Key Values for Thermodynamics, Hemisphere Publishing Corp., New York, 1984, 1. [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 S°solid,1 bar Entropy of solid at standard conditions (1 bar) 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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