Sodium pyrosulfate

CAS Registry Number®

13870-29-6

CAS Name

Sodium pyrosulfate

Molecular Formula

H2O7S2.2Na

Molecular Mass

224.12

Cite this Page

Sodium pyrosulfate.   CAS Common Chemistry.   CAS, a division of the American Chemical Society, n.d.   http://commonchemistry.cas.org/detail?cas_rn=13870-29-6 (retrieved 2025-03-28) (CAS RN: 13870-29-6).  Licensed under the Attribution-Noncommercial 4.0 International License (CC BY-NC 4.0).

Compound Properties

  • Melting Point (1)

    402 °C

Source(s)

Other Names and Identifiers

InChI

InChI=1S/2Na.H2O7S2/c;;1-8(2,3)7-9(4,5)6/h;;(H,1,2,3)(H,4,5,6)

InChIKey

InChIKey=MMNRHAASVTYVGH-UHFFFAOYSA-N

SMILES

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

Canonical SMILES

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

Other Names for this Substance

  • Disulfuric acid, sodium salt (1:2)
  • Pyrosulfuric acid, disodium salt
  • Sodium pyrosulfate
  • Disulfuric acid, disodium salt
  • Disodium pyrosulfate

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Deleted or Replaced CAS Registry Numbers

958848-90-3, 2450405-08-8

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