Barium fluoride
- Formula: BaF2
- Molecular weight: 175.324
- IUPAC Standard InChI: InChI=1S/Ba.2FH/h;2*1H/q+2;;/p-2
- IUPAC Standard InChIKey: OYLGJCQECKOTOL-UHFFFAOYSA-L
- CAS Registry Number: 7787-32-8
- 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 | -1171.29 | kJ/mol | Review | Chase, 1998 | Data last reviewed in December, 1972 |
| Quantity | Value | Units | Method | Reference | Comment |
| S°liquid,1 bar | 121.26 | J/mol*K | Review | Chase, 1998 | Data last reviewed in December, 1972 |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔfH°solid | -1208.76 | kJ/mol | Review | Chase, 1998 | Data last reviewed in December, 1972 |
| Quantity | Value | Units | Method | Reference | Comment |
| S°solid | 96.39 | J/mol*K | Review | Chase, 1998 | Data last reviewed in December, 1972 |
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) | 1641. - 3500. |
|---|---|
| A | 99.82606 |
| B | -3.507435×10-8 |
| C | 1.241606×10-8 |
| D | -1.491688×10-9 |
| E | -1.218633×10-8 |
| F | -1213.699 |
| G | 218.1412 |
| H | -1171.294 |
| Reference | Chase, 1998 |
| Comment | Data last reviewed in December, 1972 |
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. - 900. | 900. - 1240. | 1240. - 1480. | 1480. - 1641. |
|---|---|---|---|---|
| A | 50.75200 | -297673.0 | 495029.0 | -351.8590 |
| B | 114.0290 | 573416.0 | -709571.0 | 580.7820 |
| C | -162.7770 | -412756.0 | 380866.0 | -275.0990 |
| D | 92.21640 | 105325.0 | -72583.20 | 46.30240 |
| E | -0.045675 | 31782.30 | -95735.10 | 114.8440 |
| F | -1227.860 | 152849.0 | -345802.0 | -886.5710 |
| G | 129.9720 | -386062.0 | 495789.0 | -201.9320 |
| H | -1208.760 | -1208.760 | -1208.760 | -1208.760 |
| Reference | Chase, 1998 | Chase, 1998 | Chase, 1998 | Chase, 1998 |
| Comment | Data last reviewed in December, 1972 | Data last reviewed in December, 1972 | Data last reviewed in December, 1972 | Data last reviewed in December, 1972 |
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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