sodium thiosulfate

Sodium Thiosulphate Another name:Sodium hyposulphite Molecular formula:Na2S2O3 CAS: 7772-98-7 Molecular weight: 158 Properties: Monoclinic crystal, Melting point: 40-45°C, Relative Density: 1.729(17°C). Use: Used in fixers, plating, leather, reductant, dechlorinating agent, sulfur dyeing agent, as a blush preventive agent, and as a disinfectant. And decolor agent Packing: 25kg,plastic woven bag, or following your demand. Specification: Appearance colorless transparent crystal Assay ≥99.00% Water Insoluble matter ≤0.2% Sulfide ≤0.0004% Alkalinity (as NaOH) ≤0.02% Acidity (as H2SO4) ≤0.01% Iron (as Fe) ≤0.003% Heavy metals (as Pb) ≤0.001% PH 6.5~9.5 Water solution reaction in accordance with the test
photo grade, printing and dyeing