Sodium thiosulfate

Na2O3S2CAS 7772-98-7158.10 g/mol

O−SO−OSNa+Na+

Properties

Molecular formula
Na2O3S2
Molar mass
158.10 g/mol
Exact mass
157.9084 Da
Density
1.67 g/mL
Melting point
48 °C
logP
-1.08Crippen estimate
Polar surface area
57.5 Ų
H-bond donors / acceptors
2 / 2
Rotatable bonds
0

Hazards

No GHS classification is on file for this compound. That is not evidence that it is harmless.

Identifiers

CAS number
7772-98-7
SMILES
[O-]S([O-])(=O)=S.[Na+].[Na+]
InChI

The InChI we hold for this record describes the parent acid and the metal separately rather than the salt above, so it is not shown here.

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Type any one amount. The others follow from the molar mass and density.

Names and synonyms

22 names · show all
  • Thiosulfuric acid (H2S2O3), sodium salt (1:2)
  • Thiosulfuric acid, disodium salt
  • Thiosulfuric acid (H2S2O3), disodium salt
  • Disodium thiosulfate
  • Hypo
  • Sodium thiosulfate anhydrous
  • Sodium thiosulfate (Na2(S2O3))
  • Sodium oxide sulfide (Na2S2O3)
  • Sodium thiosulphate
  • S-Hydril
  • Sodium hyposulfite
  • Sodothiol
  • Declor-it
  • Chlorine control
  • Chlorine cure
  • Disodium thiosulphate
  • Desilube 88
  • Sulfactol
  • Ametox
  • Antichlor
  • Sulfothiorine
  • MFS 50

Safety data sheets

One stored sheet lists this compound in section 3, matched by the CAS number 7772-98-7. Each row opens the sheet with its composition and PDF.

Work with Sodium thiosulfate

Similar compounds

Tanimoto similarity of circular fingerprints over the whole catalogue.

Elsewhere