Potassium anion
- Formula: K-
- Molecular weight: 39.0988
- CAS Registry Number: 19128-96-2
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Reaction 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.
Data compiled by: John E. Bartmess
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Individual 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 |
| 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 |
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.
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
Go To: Top, Reaction thermochemistry data, References
- 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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