Sodium Thiosulfate Pentahydrate Wintersun [Na2O3S2.5H2O] [CAS_10102-17-7] Food Grade 99%, Solid (55.12 Lb Bag)

Wintersun code: 19-125-01 CAS Number: 10102-17-7 Molecular Formula: Na2O3S2.5H2O Molecular Weight: 248.18 g/mol Applications Sodium Thiosulfate is a white translucent crystals or powder that is common as the pentahydrate form; melting at 48 C; readily soluble in water and oil of turpentine; aqueous solution is slightly alkaline which decompose to sulfate and sulfide in the air. It is a moderate reducing agent. It is a source of thiosulfate ion (S2O3-2) (dissolves silver salts). Its major use is as a fixing agent in photography for developing film and the extracting silver from ore. It is used in chrome-tanning leather and in chemical manufacture as a source of sulfide ion. It is also used in paper, textile, and water treatment industry and gas purification. Sales Specification Appearance : Colorless Transparent Purity: ≥99.00% Insoluble substance in water: ≤0.01% Sulphide: ≤0.001% Fe: ≤0.001% PH(Solution concentration 20%) :6.5~9.5 Particle size/GRAM : 12~16 Packing 55.12 lb paper bag