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Potassium fluoride


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
Deltafgas-326.77kJ/molReviewChase, 1998Data last reviewed in June, 1969
Quantity Value Units Method Reference Comment
gas,1 bar226.60J/mol*KReviewChase, 1998Data last reviewed in June, 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) 3000. - 6000.
A 37.20911
B 0.861908
C -0.047662
D 0.004070
E -0.201727
F -338.5785
G 270.2433
H -326.7704
ReferenceChase, 1998
Comment Data last reviewed in June, 1969

Condensed phase thermochemistry data

Go To: Top, Gas phase thermochemistry data, Reaction thermochemistry 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
Deltafliquid-554.47kJ/molReviewChase, 1998Data last reviewed in June, 1969
Quantity Value Units Method Reference Comment
liquid,1 bar67.63J/mol*KReviewChase, 1998Data last reviewed in June, 1969
Quantity Value Units Method Reference Comment
Deltafsolid-568.61kJ/molReviewChase, 1998Data last reviewed in June, 1969
Quantity Value Units Method Reference Comment
solid66.55J/mol*KReviewChase, 1998Data last reviewed in June, 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 (J/mol*K)
    H° = standard enthalpy (kJ/mol)
    S° = standard entropy (J/mol*K)
    t = temperature (K) / 1000.

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Temperature (K) 1131. - 3000.
A 71.96522
B -2.116748×10-10
C 1.309726×10-10
D -2.449678×10-11
E -4.589305×10-12
F -575.9234
G 154.7226
H -554.4679
ReferenceChase, 1998
Comment Data last reviewed in June, 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 (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. - 900.900. - 1131.
A 46.53612-254.3834
B 13.96661474.8003
C -2.385212-246.4832
D 2.84467743.88472
E -0.14077043.50900
F -583.5592-398.2930
G 117.9905-212.6434
H -568.6056-568.6056
ReferenceChase, 1998Chase, 1998
Comment Data last reviewed in June, 1969 Data last reviewed in June, 1969

Reaction thermochemistry 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 as indicated in comments:
B - John E. Bartmess
M - Michael M. Meot-Ner (Mautner) and Sharon G. Lias

Note: Please consider using the reaction search for this species. This page allows searching of all reactions involving this species. A general reaction search form is also available. Future versions of this site may rely on reaction search pages in place of the enumerated reaction displays seen below.

Individual Reactions

Fluorine anion + Potassium fluoride = (Fluorine anion bullet Potassium fluoride)

By formula: F- + FK = (F- bullet FK)

Quantity Value Units Method Reference Comment
Deltar223.8 ± 3.3kJ/molTDAsNikitin, Sidorov, et al., 1981gas phase; value altered from reference due to conversion from electron convention to ion convention; B
Deltar200. ± 4.2kJ/molTDEqSidorov, Nikitin, et al., 1980gas phase; Fluoride Affinity:1100K, «DELTA»Hf(KF2-):298K; value altered from reference due to conversion from electron convention to ion convention; B
Deltar>220. ± 21.kJ/molTDEqGusarov, Gorokhov, et al., 1979gas phase; value altered from reference due to conversion from electron convention to ion convention; B
Deltar194.kJ/molMSNikitin, Skokan, et al., 1979gas phase; Knudsen cell; M

AlF4- + Potassium fluoride = (AlF4- bullet Potassium fluoride)

By formula: AlF4- + FK = (AlF4- bullet FK)

Quantity Value Units Method Reference Comment
Deltar120. ± 8.4kJ/molTDAsGusarov, Gorokhov, et al., 1979gas phase; value altered from reference due to conversion from electron convention to ion convention; B

Be2F5- + Potassium fluoride = (Be2F5- bullet Potassium fluoride)

By formula: Be2F5- + FK = (Be2F5- bullet FK)

Quantity Value Units Method Reference Comment
Deltar290. ± 10.kJ/molN/ANikitin, Sorokin, et al., 1980gas phase; value altered from reference due to conversion from electron convention to ion convention; B

References

Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Reaction 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]

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, Gas phase thermochemistry data, Condensed phase thermochemistry data, Reaction thermochemistry data, References