Sodium sulfite

CAS Registry Number®

7757-83-7
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CAS Name

Sodium sulfite

Molecular Formula

H2O3S.2Na

Cite this Page

Sodium sulfite.   CAS Common Chemistry.   CAS, a division of the American Chemical Society, n.d.   http://commonchemistry.cas.org/detail?cas_rn=7757-83-7 (retrieved 2021-12-07) (CAS RN: 7757-83-7).  Licensed under the Attribution-Noncommercial 4.0 International License (CC BY-NC 4.0).

Compound Properties

  • Density (1)

    2.63 g/cm3

Source(s)

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

Other Names and Identifiers

InChI

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

InChIKey

InChIKey=YKZJGZHPDUVUKN-UHFFFAOYSA-N

SMILES

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

Canonical SMILES

[Na].O=S(O)O

Other Names for this Substance

  • Sulfurous acid, sodium salt (1:2)
  • Sulfurous acid, disodium salt
  • Anhydrous sodium sulfite
  • Disodium sulfite
  • Sodium sulfite (Na2SO3)

Deleted or Replaced CAS Registry Numbers

68135-69-3