potassium tetrafluoroborate
- Formula: BF4K
- Molecular weight: 125.903
- IUPAC Standard InChI: InChI=1S/BF4.K/c2-1(3,4)5;/q-1;+1
- IUPAC Standard InChIKey: AKEBROIVCDHVSD-UHFFFAOYSA-N
- CAS Registry Number: 14075-53-7
- Chemical structure:
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Solid 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) | 298. to 556. | 556. to 843. |
|---|---|---|
| A | 76.10696 | 115.9600 |
| B | 113.1529 | 43.43159 |
| C | 84.93478 | 0.561899 |
| D | -51.21509 | -0.142067 |
| E | -0.138083 | -0.034282 |
| F | -1915.820 | -1909.343 |
| G | 188.1524 | 285.8777 |
| H | -1886.984 | -1886.984 |
| Reference | Chase, 1998 | Chase, 1998 |
| Comment | Data last reviewed in December, 1969 | Data last reviewed in December, 1969 |
| Temperature (K) |
Cp (J/mol*K) |
S° (J/mol*K) |
-(G° - H°298.15)/T (J/mol*K) |
H° - H°298.15 (kJ/mol) |
|---|---|---|---|---|
| 298. | 114.5 | 133.8 | 133.9 | -0.02 |
| 300. | 114.8 | 134.6 | 133.9 | 0.21 |
| 400. | 130.8 | 169.8 | 138.6 | 12.49 |
| 500. | 147.0 | 200.7 | 148.0 | 26.38 |
| Temperature (K) |
Cp (J/mol*K) |
S° (J/mol*K) |
-(G° - H°298.15)/T (J/mol*K) |
H° - H°298.15 (kJ/mol) |
|---|---|---|---|---|
| 556. | 140.1 | 242.1 | 154.1 | 48.92 |
| 600. | 142.1 | 252.8 | 161.0 | 55.13 |
| 700. | 146.5 | 275.1 | 175.7 | 69.56 |
| 800. | 150.9 | 294.9 | 189.4 | 84.43 |
References
Go To: Top, Solid 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, Solid Phase Heat Capacity (Shomate Equation), References
- Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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