Sodium thiosulfate
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
7772-98-7SMILES
[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.
Weigh it out
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
Sodium thiosulfate pentahydrate10102-17-783 % similar
Magnesium thiosulfate10124-53-567 % similar
Potassium thiosulfate10294-66-367 % similar
Barium thiosulfate35112-53-967 % similar
Sodium sulfate7757-82-642 % similar
Sodium sulfamate13845-18-636 % similar
Sodium pyrosulfate13870-29-636 % similar
Sulfuric acid, sodium salt15124-09-136 % similar
Tanimoto similarity of circular fingerprints over the whole catalogue.