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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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 | -446.802 | kcal/mol | Review | Chase, 1998 | Data last reviewed in December, 1969 |
| Quantity | Value | Units | Method | Reference | Comment |
| S°liquid,1 bar | 35.882 | cal/mol*K | Review | Chase, 1998 | Data last reviewed in December, 1969 |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔfH°solid | -450.999 | kcal/mol | Review | Chase, 1998 | Data last reviewed in December, 1969 |
| Quantity | Value | Units | Method | Reference | Comment |
| S°solid | 32.000 | cal/mol*K | Review | Chase, 1998 | Data last reviewed in December, 1969 |
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 (cal/mol*K)
H° = standard enthalpy (kcal/mol)
S° = standard entropy (cal/mol*K)
t = temperature (K) / 1000.
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| Temperature (K) | 843. to 1500. |
|---|---|
| A | 39.94199 |
| B | 5.589281×10-9 |
| C | -5.417771×10-9 |
| D | 1.709850×10-9 |
| E | 6.507940×10-11 |
| F | -458.7101 |
| G | 84.21800 |
| H | -446.8009 |
| Reference | Chase, 1998 |
| Comment | Data last reviewed in December, 1969 |
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 (cal/mol*K)
H° = standard enthalpy (kcal/mol)
S° = standard entropy (cal/mol*K)
t = temperature (K) / 1000.
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| Temperature (K) | 298. to 556. | 556. to 843. |
|---|---|---|
| A | 18.19000 | 27.71511 |
| B | 27.04419 | 10.38040 |
| C | 20.29990 | 0.134297 |
| D | -12.24070 | -0.033955 |
| E | -0.033003 | -0.008194 |
| F | -457.8920 | -456.3439 |
| G | 44.96950 | 68.32641 |
| H | -451.0000 | -451.0000 |
| Reference | Chase, 1998 | Chase, 1998 |
| Comment | Data last reviewed in December, 1969 | Data last reviewed in December, 1969 |
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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