HomeChemicals SupplyOther Inorganic > Sodium thiosulphate
Chemicals SupplyOther Inorganic > Sodium thiosulphate
  • Product Name: Sodium thiosulphate
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  • Product Origin: China
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CAS NO. 7772-98-7
Molecular Fomula  Na2S2O2 .5H2O 
Molecular weight


Einecs No.


Item Standard Result
Appearance  White crystal needle granular conform
Purity 99.0%min 99.10%
Insoluble matter in water   0.01% max 0.01%
Sulfides(Na2S:) 0.001% max  0.001%
Insoluble substance in water 0.02%Max 0.003%
Iron(Fe) 0.002% Max 0.002%
PH value 6.5 - 9.5 8.7


Applications:It is used in photographic ,electroplate and purifying soft water and tanning hides.It is also used as a reducing agent, fixers, blush preventive agent, deoxidizer, sulfur dyeing agent, anti-whiting agent, detergent, disinfectant and color faking agent.  

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