High purity inorganic chemicals for the pharmaceutical, aerospace, R&D, and electronic industries.
 

  Barker Reinvents the Possible

Sodium Thiosulfate, 99% Anhydrous, Reagent

 

 

Assay: ≥99.0%
Na2S2O3
Limits
Assay: 99% min.
Heavy Metals (as Pb): 0.001% max.
Sulfide (S2): 0.0001% max.
Calcium (Ca): 0.01% max.
Loss on drying(105°C): 1.0 % max.