Potassium bisulfite

CAS Registry Number®

7773-03-7
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CAS Name

Potassium bisulfite

Molecular Formula

H2O3S.K

Cite this Page

Potassium bisulfite.   CAS Common Chemistry.   CAS, a division of the American Chemical Society, n.d.   http://commonchemistry.cas.org/detail?cas_rn=7773-03-7 (retrieved 2022-12-09) (CAS RN: 7773-03-7).  Licensed under the Attribution-Noncommercial 4.0 International License (CC BY-NC 4.0).

Compound Properties

  • Melting Point (1)

    190 °C (decomp)

Source(s)

  • (1) Hazardous Substances Data Bank data were obtained from the National Library of Medicine (US)

Other Names and Identifiers

InChI

InChI=1S/K.H2O3S/c;1-4(2)3/h;(H2,1,2,3)

InChIKey

InChIKey=SJZFFCZQDPVHQI-UHFFFAOYSA-N

SMILES

S(=O)(O)O.[K]

Canonical SMILES

[K].O=S(O)O

Other Names for this Substance

  • Sulfurous acid, potassium salt (1:1)
  • Sulfurous acid, monopotassium salt
  • Potassium sulfite (KHSO3)
  • Potassium acid sulfite
  • Potassium bisulfite