potassium hydride
- Formula: HK
- Molecular weight: 40.1062
- IUPAC Standard InChI: InChI=1S/K.H
- IUPAC Standard InChIKey: NTTOTNSKUYCDAV-UHFFFAOYSA-N
- CAS Registry Number: 7693-26-7
- Chemical structure:
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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:
B - John E. Bartmess
LBLHLM - Sharon G. Lias, John E. Bartmess, Joel F. Liebman, John L. Holmes, Rhoda D. Levin, and W. Gary Mallard
Ionization energy determinations
| IE (eV) | Method | Reference | Comment |
|---|---|---|---|
| 8.0 ± 1.0 | S | Farber, Srivastava, et al., 1982 | LBLHLM |
De-protonation reactions
K- + =
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 1439.840 ± 0.042 | kJ/mol | D-EA | Andersson, Sandstrom, et al., 2000 | gas phase; Given: 0.501459(12) eV; B |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔrG° | 1420.4 ± 1.3 | kJ/mol | H-TS | Andersson, Sandstrom, et al., 2000 | gas phase; Given: 0.501459(12) eV; B |
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.
Farber, Srivastava, et al., 1982
Farber, M.; Srivastava, R.D.; Moyer, J.W.,
Mass spectrometric determination of the thermodynamics of potassium hydroxide and minor potassium-containing species required in magnetohydrodynamic power systems,
J. Chem. Thermodyn., 1982, 14, 1103. [all data]
Andersson, Sandstrom, et al., 2000
Andersson, K.T.; Sandstrom, J.; Kiyan, I.Y.; Hanstorp, D.; Pegg, D.J.,
Measurement of the electron affinity of potassium - art. no. 022503,
Phys. Rev. A, 2000, 62, 2, 22503, https://doi.org/10.1103/PhysRevA.62.022503
. [all data]
Notes
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- Symbols used in this document:
ΔrG° Free energy of reaction at standard conditions ΔrH° Enthalpy of reaction at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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