Lithium fluoride

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Condensed 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
Δfliquid-598.65kJ/molReviewChase, 1998Data last reviewed in December, 1968
Quantity Value Units Method Reference Comment
liquid,1 bar42.96J/mol*KReviewChase, 1998Data last reviewed in December, 1968
Quantity Value Units Method Reference Comment
Δfsolid-616.93kJ/molReviewChase, 1998Data last reviewed in December, 1968
Quantity Value Units Method Reference Comment
solid35.73J/mol*KReviewChase, 1998Data last reviewed in December, 1968

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) 1121.3 to 3000.
A 64.18298
B 4.195423×10-11
C -2.302271×10-11
D 3.924242×10-12
E 1.150237×10-12
F -617.7885
G 120.6335
H -598.6509
ReferenceChase, 1998
Comment Data last reviewed in December, 1968

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 1121.3
A 41.75837
B 18.71110
C 0.693674
D -0.992621
E -0.487055
F -631.8342
G 77.92072
H -616.9308
ReferenceChase, 1998
Comment Data last reviewed in December, 1968

Phase change 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 by: William E. Acree, Jr., James S. Chickos

Enthalpy of sublimation

ΔsubH (kJ/mol) Temperature (K) Reference Comment
268.2 ± 4.21073. to 1121.Scheffee and Margrave, 1959See also Eisenstadt, Rothberg, et al., 1958.
267.8 ± 4.2957. to 1113.Porter and Schoonmaker, 1958 

Gas phase ion energetics 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:
RDSH - Henry M. Rosenstock, Keith Draxl, Bruce W. Steiner, and John T. Herron
LL - Sharon G. Lias and Joel F. Liebman
B - John E. Bartmess

View reactions leading to FLi+ (ion structure unspecified)

Electron affinity determinations

EA (eV) Method Reference Comment
>1.34997EIAEEbinghaus, 1964From (LiF)2; G3MP2B3 calculations indicate an EA of ca.0.5 eV; B

Ionization energy determinations

IE (eV) Method Reference Comment
11.3EIBerkowitz, Tasman, et al., 1962RDSH

Appearance energy determinations

Ion AE (eV) Other Products MethodReferenceComment
Li+11.40FEIVeljkovic, Neskovic, et al., 1993LL
Li+11.5FEIBerkowitz, Tasman, et al., 1962RDSH
Li+~12.FEIPorter and Schoonmaker, 1958RDSH

References

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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]

Scheffee and Margrave, 1959
Scheffee, R.S.; Margrave, J.L., Vapor Pressure Equations for Species over Solid and Liquid LiF, J. Chem. Phys., 1959, 31, 6, 1682, https://doi.org/10.1063/1.1730680 . [all data]

Eisenstadt, Rothberg, et al., 1958
Eisenstadt, M.; Rothberg, G.M.; Kusch, P., Molecular Composition of Alkali Fluoride Vapors, J. Chem. Phys., 1958, 29, 4, 797, https://doi.org/10.1063/1.1744593 . [all data]

Porter and Schoonmaker, 1958
Porter, R.F.; Schoonmaker, R.C., Mass spectrometric study of the vaporization of LiF, NaF, and LiF-NaF mixtures, J. Chem. Phys., 1958, 29, 1070. [all data]

Ebinghaus, 1964
Ebinghaus, H.Z., Negative Ionen aus Alkalihalogeniden und Electronenaffinitaten der Alkalimetalle und Alkalihalogenide, Z. Naturfor., 1964, 19A, 727. [all data]

Berkowitz, Tasman, et al., 1962
Berkowitz, J.; Tasman, H.A.; Chupka, W.A., Double-oven experiments with lithium halide vapors, J. Chem. Phys., 1962, 36, 2170. [all data]

Veljkovic, Neskovic, et al., 1993
Veljkovic, M.V.; Neskovic, O.M.; Miletic, M.B.; Zmbov, K.F., Mass spectrometric study of ionization and fragmentation of lithium fluoride vapor by electron impact, J. Serb. Chem. Soc., 1993, 58, 101. [all data]


Notes

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