chlorine pentafluoride
- Formula: ClF5
- Molecular weight: 130.445
- IUPAC Standard InChI: InChI=1S/ClF5/c2-1(3,4,5)6
- IUPAC Standard InChIKey: KNSWNNXPAWSACI-UHFFFAOYSA-N
- CAS Registry Number: 13637-63-3
- Chemical structure:
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Gas phase thermochemistry data
Go To: Top, Phase change data, Gas phase ion energetics 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°gas | -238.49 | kJ/mol | Review | Chase, 1998 | Data last reviewed in June, 1966 |
| Quantity | Value | Units | Method | Reference | Comment |
| S°gas,1 bar | 310.73 | J/mol*K | Review | Chase, 1998 | Data last reviewed in June, 1966 |
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 1000. | 1000. to 6000. |
|---|---|---|
| A | 89.15560 | 132.7721 |
| B | 117.0390 | 0.149737 |
| C | -118.3331 | -0.031080 |
| D | 42.36216 | 0.002193 |
| E | -1.556713 | -4.258811 |
| F | -274.5344 | -291.2512 |
| G | 379.8566 | 450.3658 |
| H | -238.4884 | -238.4884 |
| Reference | Chase, 1998 | Chase, 1998 |
| Comment | Data last reviewed in June, 1966 | Data last reviewed in June, 1966 |
Phase change data
Go To: Top, Gas phase thermochemistry data, Gas phase ion energetics 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 as indicated in comments:
TRC - Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny director
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| Tboil | 260.3 | K | N/A | Streng, 1971 | Uncertainty assigned by TRC = 0.4 K; TRC |
| Quantity | Value | Units | Method | Reference | Comment |
| Tfus | 171. | K | N/A | Streng, 1971 | Uncertainty assigned by TRC = 1.5 K; TRC |
Antoine Equation Parameters
log10(P) = A − (B / (T + C))
P = vapor pressure (bar)
T = temperature (K)
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| Temperature (K) | A | B | C | Reference | Comment |
|---|---|---|---|---|---|
| 194.0 to 297.9 | 3.76103 | 798.006 | -46.838 | Pilipovich, Maya, et al., 1967 | Coefficents calculated by NIST from author's data. |
Gas phase ion energetics 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.
Data compiled by: Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi
Appearance energy determinations
| Ion | AE (eV) | Other Products | Method | Reference | Comment |
|---|---|---|---|---|---|
| ClF+ | 12.7 | 4F | EI | Dudin, Baluev, et al., 1980 | |
| ClF2+ | 16.25 ± 0.15 | 3F | EI | Dudin, Baluev, et al., 1980 | |
| ClF3+ | 15.76 ± 0.11 | 2F | EI | Dudin, Baluev, et al., 1980 | |
| ClF4+ | 13.54 ± 0.06 | F | EI | Dudin, Baluev, et al., 1980 |
References
Go To: Top, Gas phase thermochemistry data, Phase change data, Gas phase ion energetics 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]
Streng, 1971
Streng, A.G.,
Miscibility and Compatibility of Some Liquid and Solidified Gases at Low Temperature,
J. Chem. Eng. Data, 1971, 16, 357. [all data]
Pilipovich, Maya, et al., 1967
Pilipovich, D.; Maya, W.; Lawton, E.A.; Bauer, H.F.; Sheehan, D.F.; Ogimachi, N.N.; Wilson, R.D.; Gunderloy, F.C., Jr.; Bedwell, V.E.,
Chlorine Pentafluoride. Preparation and Properties,
Inorg. Chem., 1967, 6, 10, 1918-1919, https://doi.org/10.1021/ic50056a036
. [all data]
Dudin, Baluev, et al., 1980
Dudin, A.V.; Baluev, A.V.; Gorokhov, L.N.,
A mass-spectrometric investigation of ionization of chlorine pentafluoride by electron impact,
Bull. Acad. Sci. USSR, Div. Chem. Sci., 1980, 311. [all data]
Notes
Go To: Top, Gas phase thermochemistry data, Phase change data, Gas phase ion energetics data, References
- Symbols used in this document:
AE Appearance energy S°gas,1 bar Entropy of gas at standard conditions (1 bar) Tboil Boiling point Tfus Fusion (melting) point ΔfH°gas Enthalpy of formation of gas at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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