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  • Name: Sodium thiosulfate
  • Product name: sodium thiosulphate, sodium hyposulfide, sodium subsulfite hyposulphite of soda
  • Chemical formula: Na2S2O3
  • Molecular weight: 158
  • Water soluble: soluble in water
  • Melting and Boiling point: Melting point: 48.5 ° C
  • Density: 1.729g/cm3
  • CAS NO.: 10102-17-7
  • EINECS NO.: 231-867-5
  • Product appearance: Colorless crystal
  • Packing specification: packed with plastics inside, woven outside

Sodium thiosulfate  chemical composition test analysis:

ITEMS

STANDARD
GB637-88

RESULTS

Sodium thiosulfate ≥

≥99.0%

99.80%

Water insoluble matter ≤

≤0.002%

0.0015%

Chloride ≤

≤0.02%

0.01%

Sulfate and sulfite ≤

≤0.04%

0.02%

Sulfide ≤

≤0.0001%

0.00007%

Total nitrogen content ≤

≤0.002%

0.001%

Potassium ≤

≤0.001%

0.0008%

Iron ≤

≤0.0005%

0.0003%

Magnesium ≤

0.001%

0.0008%

 Calcium ≤

0.003%

0.001%

Heavy metal ≤

0.005%

0.003%

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