Sodium Thiosulfuric Acid

Chemical Name : Sodium Thiosulfuric Acid
Molecular Formula: Na2S2O3
Molar Mass: 158.09774 g/mol
Appearance: white crystals
Uses: used in fixers, plating, leather, reductant, dechlorinating agent, sulfur dyeing agent, as a blush preventive agent, and as a disinfectant. and decolor agent.

Photo grade Specification:
Na2S2O3A.5H2O: 99.0% min
Water-insoluble : 0.01% max
Density and phase: 1.667 g/cmA , solid
Solubility in water: Very Soluble
Melting point:: 40-45 A C
Sulphide(as Na2S): 0.001% max
Fe: 0.002% max
PH Value(200g/l solution): 6.5-9.5
Granularity(g/g): 12-16

Tech grade specification:
Na2S2O3A.5H2O: 98.5% min
Water-insoluble : 0.01% max
Density and phase: 1.667 g/cmA , solid
Melting point:: 40-45 A C
Sulphide(as Na2S): 0.003% max