- Formula: F4Hf
- Molecular weight: 254.48
- CAS Registry Number: 13709-52-9
- Information on this page:
- Other data available:
- Data at other public NIST sites:
Ion clustering 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: John E. Bartmess
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+ HfF4 = ( HfF4)
By formula: F- + HfF4 = (F- HfF4)
|rH°||429. ± 17.||kJ/mol||TDEq||Nikitin, Igolkina, et al., 1986||gas phase; Reanalyzed literature data, 14.1 kcal < AlF3; value altered from reference due to conversion from electron convention to ion convention|
|rH°||405. ± 8.8||kJ/mol||TDEq||Nikitin, Sorokin, et al., 1980||gas phase; Fluoride Affinity: 20.1 kcal < AlF3|
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Nikitin, Igolkina, et al., 1986
Nikitin, M.I.; Igolkina, N.A.; Skokan, E.V.; Sorokin, I.D.; Sidirov, L.N., Enthalpies of formation of the AlF4- ion, J. Phys. Chem., 1986, 60, 22. [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]
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- Symbols used in this document:
rH° Enthalpy of reaction at standard conditions
- Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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