Potassium fluoride
- Formula: FK
- Molecular weight: 58.0967
- IUPAC Standard InChIKey: NROKBHXJSPEDAR-UHFFFAOYSA-M
- CAS Registry Number: 7789-23-3
- Chemical structure:
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Reaction 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:
B - John E. Bartmess
M - Michael M. Meot-Ner (Mautner) and Sharon G. Lias
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Individual Reactions
By formula: F- + FK = (F- • FK)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 53.50 ± 0.80 | kcal/mol | TDAs | Nikitin, Sidorov, et al., 1981 | gas phase; value altered from reference due to conversion from electron convention to ion convention; B |
ΔrH° | 47.9 ± 1.0 | kcal/mol | TDEq | Sidorov, Nikitin, et al., 1980 | gas phase; Fluoride Affinity:1100K, ΔHf(KF2-):298K; value altered from reference due to conversion from electron convention to ion convention; B |
ΔrH° | >52.6 ± 5.0 | kcal/mol | TDEq | Gusarov, Gorokhov, et al., 1979 | gas phase; value altered from reference due to conversion from electron convention to ion convention; B |
ΔrH° | 46.4 | kcal/mol | MS | Nikitin, Skokan, et al., 1979 | gas phase; Knudsen cell; M |
By formula: AlF4- + FK = (AlF4- • FK)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 28.6 ± 2.0 | kcal/mol | TDAs | Gusarov, Gorokhov, et al., 1979 | gas phase; value altered from reference due to conversion from electron convention to ion convention; B |
By formula: Be2F5- + FK = (Be2F5- • FK)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 69.2 ± 2.5 | kcal/mol | N/A | Nikitin, Sorokin, et al., 1980 | gas phase; value altered from reference due to conversion from electron convention to ion convention; B |
References
Go To: Top, Reaction thermochemistry data, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Nikitin, Sidorov, et al., 1981
Nikitin, M.I.; Sidorov, L.N.; Skokan, E.V.; Sorokin, I.D.,
Mass spectrometric determination of the heats of formation of ScF4- and KF2-,
Russ. J. Phys. Chem., 1981, 55, 1107. [all data]
Sidorov, Nikitin, et al., 1980
Sidorov, L.N.; Nikitin, M.I.; Skokan, E.V.; Sorokin, I.D.,
Mass-spectrometric determination of enthalpies of dissociation of gaseous complex fluorides into neutral and charged particles. II. Heats of formation of AlF4- and KF2-,
Int. J. Mass Spectrom. Ion Phys., 1980, 35, 203. [all data]
Gusarov, Gorokhov, et al., 1979
Gusarov, A.V.; Gorokhov, L.N.; Pyatenko, A.T.; Sidorova, I.V.,
Negative ions in the vapors of inorganic compounds,
Adv. Mass Spectrom., 1979, 8, 262. [all data]
Nikitin, Skokan, et al., 1979
Nikitin, M.I.; Skokan, E.V.; Sorokin, I.D.; Sidorov, L.N.,
Sov. Phys. Dokl., 1979, 247, 594. [all data]
Nikitin, Sorokin, et al., 1980
Nikitin, M.I.; Sorokin, I.D.; Skokan, E.V.; Sidorov, L.N.,
Negative Ions in the Saturated Vapors of the Potassium Fluoride - Hafnium Tetrafluoride and Potassium Fluoride - Beryllium Difluoride Systems,
Russ. J. Phys. Chem., 1980, 54, page]. [all data]
Notes
Go To: Top, Reaction thermochemistry data, References
- Symbols used in this document:
ΔrH° Enthalpy of reaction at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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