trifluoromethyl hypofluorite
- Formula: CF4O
- Molecular weight: 104.0037
- CAS Registry Number: 373-91-1
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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.
Data compiled as indicated in comments:
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔfH°gas | -764.84 | kJ/mol | Review | Chase, 1998 | Data last reviewed in December, 1969 |
| ΔfH°gas | -770. ± 10. | kJ/mol | Eqk | Levy and Kennedy, 1972 | ALS |
| Quantity | Value | Units | Method | Reference | Comment |
| S°gas,1 bar | 322.48 | J/mol*K | Review | Chase, 1998 | Data last reviewed in December, 1969 |
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 1500. | 1500. to 6000. |
|---|---|---|
| A | 51.84550 | 130.2910 |
| B | 148.9750 | -0.927615 |
| C | -108.7790 | 0.201844 |
| D | 27.91380 | -0.014470 |
| E | -0.715323 | -11.61420 |
| F | -788.4200 | -831.9500 |
| G | 341.3700 | 440.8210 |
| H | -764.8350 | -764.8350 |
| Reference | Chase, 1998 | Chase, 1998 |
| Comment | Data last reviewed in December, 1969 | Data last reviewed in December, 1969 |
References
Go To: Top, Gas 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]
Levy and Kennedy, 1972
Levy, J.B.; Kennedy, R.C.,
Bistrifluoromethyl peroxide. I. Thermodynamics of the equilibrium with carbonyl fluoride and trifluoromethyl hypofluorite,
J. Am. Chem. Soc., 1972, 94, 3302-3305. [all data]
Notes
Go To: Top, Gas phase thermochemistry data, References
- Symbols used in this document:
S°gas,1 bar Entropy of gas at standard conditions (1 bar) ΔfH°gas Enthalpy of formation of gas at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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