potassium iodide

• Formula: IK
• Molecular weight: 166.0028
• IUPAC Standard InChI: InChI=1S/HI.K/h1H;/q;+1/p-1 Copy

  
• IUPAC Standard InChIKey: NLKNQRATVPKPDG-UHFFFAOYSA-M Copy
• CAS Registry Number: 7681-11-0
• Chemical structure:
  This structure is also available as a 2d Mol file
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• Information on this page:
  • Phase change data
  • Ion clustering data
  • References
  • Notes
• Other data available:
  • Gas phase thermochemistry data
  • Condensed phase thermochemistry data
  • Reaction thermochemistry data
  • Gas phase ion energetics data
  • Constants of diatomic molecules
• Data at other public NIST sites:
  • Microwave spectra (on physics lab web site)
  • Gas Phase Kinetics Database
  • X-ray Photoelectron Spectroscopy Database, version 5.0
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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.

Antoine Equation Parameters

log₁₀(P) = A − (B / (T + C))
    P = vapor pressure (bar)
    T = temperature (K)

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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

Note: Please consider using the reaction search for this species. This page allows searching of all reactions involving this species. Searches may be limited to ion clustering reactions. A general reaction search form is also available.

Clustering reactions

 +  = ( • )

By formula: I^- + IK = (I^- • IK)

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.

Stull, 1947
Stull, Daniel R., Vapor Pressure of Pure Substances. Organic and Inorganic Compounds, Ind. Eng. Chem., 1947, 39, 4, 517-540, https://doi.org/10.1021/ie50448a022 . [all data]

Burdukovskaya, Kudin, et al., 1984
Burdukovskaya, G.G.; Kudin, L.S.; Butman, M.F.; Krasnov, K.S., Ionic forms in the vapour over potassium iodide, Russ. J. Inorg. Chem., 1984, 29, 3020. [all data]

Notes

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• Symbols used in this document:
  

  ΔrH°	Enthalpy of reaction at standard conditions

• Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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