zirconium tetrafluoride
- Formula: F4Zr
- Molecular weight: 167.218
- IUPAC Standard InChIKey: NLGFRLRLBUOAEJ-UHFFFAOYSA-M
- CAS Registry Number: 7783-64-4
- Chemical structure:
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Gas phase thermochemistry data
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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°gas | -1673.60 | kJ/mol | Review | Chase, 1998 | Data last reviewed in June, 1975 |
Quantity | Value | Units | Method | Reference | Comment |
S°gas,1 bar | 319.39 | J/mol*K | Review | Chase, 1998 | Data last reviewed in June, 1975 |
Gas 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 6000. |
---|---|
A | 104.4167 |
B | 3.106352 |
C | -0.837700 |
D | 0.071272 |
E | -1.639702 |
F | -1710.361 |
G | 435.6381 |
H | -1673.600 |
Reference | Chase, 1998 |
Comment | Data last reviewed in June, 1975 |
Condensed phase thermochemistry data
Go To: Top, Gas phase thermochemistry data, Phase change data, 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°solid | -1911.25 | kJ/mol | Review | Chase, 1998 | Data last reviewed in June, 1975 |
Quantity | Value | Units | Method | Reference | Comment |
S°solid | 104.66 | J/mol*K | Review | Chase, 1998 | 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 1400. |
---|---|
A | 107.7292 |
B | 47.06080 |
C | -28.78115 |
D | 9.510233 |
E | -1.414556 |
F | -1949.987 |
G | 214.2405 |
H | -1911.251 |
Reference | Chase, 1998 |
Comment | Data last reviewed in June, 1975 |
Phase change data
Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, References, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Data compiled by: William E. Acree, Jr., James S. Chickos
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔsubH° | 240. ± 7. | kJ/mol | AVG | N/A | Average of 7 values; Individual data points |
References
Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change 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, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, References
- Symbols used in this document:
S°gas,1 bar Entropy of gas at standard conditions (1 bar) S°solid Entropy of solid at standard conditions ΔfH°gas Enthalpy of formation of gas at standard conditions ΔfH°solid Enthalpy of formation of solid at standard conditions ΔsubH° Enthalpy of sublimation at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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