Magnesium fluoride


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-1072.36kJ/molReviewChase, 1998Data last reviewed in June, 1975
Quantity Value Units Method Reference Comment
liquid,1 bar89.93J/mol*KReviewChase, 1998Data last reviewed in June, 1975
Quantity Value Units Method Reference Comment
Δfsolid-1124.2 ± 1.2kJ/molReviewCox, Wagman, et al., 1984CODATA Review value
Δfsolid-1124.24kJ/molReviewChase, 1998Data last reviewed in June, 1975
Quantity Value Units Method Reference Comment
solid,1 bar57.2 ± 0.5J/mol*KReviewCox, Wagman, et al., 1984CODATA Review value
Quantity Value Units Method Reference Comment
solid57.17J/mol*KReviewChase, 1998Data last reviewed in June, 1975

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) 1536. to 3000.
A 94.92199
B -5.302467×10-8
C 2.126544×10-8
D -2.906320×10-9
E -1.298504×10-8
F -1114.823
G 178.2443
H -1072.355
ReferenceChase, 1998
Comment Data last reviewed in June, 1975

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 1536.
A 68.55149
B 22.72586
C -12.16218
D 2.573717
E -1.140865
F -1149.445
G 127.4522
H -1124.241
ReferenceChase, 1998
Comment Data last reviewed in June, 1975

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 evaluated as indicated in comments:
L - Sharon G. Lias

Data compiled as indicated in comments:
RDSH - Henry M. Rosenstock, Keith Draxl, Bruce W. Steiner, and John T. Herron

Quantity Value Units Method Reference Comment
IE (evaluated)13.6 ± 0.3eVN/AN/AL

Ionization energy determinations

IE (eV) Method Reference Comment
13.3 ± 0.3EIHildenbrand, 1968RDSH
14.0 ± 0.5EIMurad, Hildenbrand, et al., 1966RDSH
13.5 ± 0.4EIBerkowitz and Marquart, 1962RDSH

Appearance energy determinations

Ion AE (eV) Other Products MethodReferenceComment
MgF+13.5 ± 1.0FEIHildenbrand, 1968RDSH
MgF+13.7 ± 0.4FEIEhlert, Blue, et al., 1964RDSH
MgF+13.5 ± 0.4FEIBerkowitz and Marquart, 1962RDSH

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]

Cox, Wagman, et al., 1984
Cox, J.D.; Wagman, D.D.; Medvedev, V.A., CODATA Key Values for Thermodynamics, Hemisphere Publishing Corp., New York, 1984, 1. [all data]

Hildenbrand, 1968
Hildenbrand, D.L., Mass-spectrometric studies of bonding in the group IIA fluorides, J. Chem. Phys., 1968, 48, 3657. [all data]

Murad, Hildenbrand, et al., 1966
Murad, E.; Hildenbrand, D.L.; Main, R.P., Dissociation energies of group IIIA monofluorides-the possibility of potential maxima in their excited H states,, J. Chem. Phys., 1966, 45, 263. [all data]

Berkowitz and Marquart, 1962
Berkowitz, J.; Marquart, J.R., Mass-spectrometric study of the magnesium halides, J. Chem. Phys., 1962, 37, 1853. [all data]

Ehlert, Blue, et al., 1964
Ehlert, T.C.; Blue, G.D.; Green, J.W.; Margrave, J.L., Mass spectrometric studies at high temperatures. IV. Dissociation energies of the alkaline earth monofluorides, J. Chem. Phys., 1964, 41, 2250. [all data]


Notes

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