Sodium Thiosulfate

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 gas purification. Sodium Thiosulfate Pentahydrate FCC WC Code: 19-125-02 Sales Specification Appearance: Solid Assay: 99.00 % Sodium Thiosulfate (Na2S2O3) : 100.50 % Lead: 2 mg/kg Selenium: 0.003 % Water: 32.00 %- 37.00 % Sulfate : Nil Sulfite : Nil Chloride: Nil pH of 10% solution: 6.0- 8.0 Iron: 0.002 % Packing 50 lb paper bag, 44 bags per pallet

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 gas purification. Sodium Thiosulfate Anhydrous FCC Wcode:19-051-002 Sales Specifications Sodium Thiosulphate (by mass) : 98.00% Min pH of 10% Solution :6.5 to 9.5 Insoluble in water :0.001% Max Sodium Sulphide :0.001% Max Iron (Fe) : 0.005% Max Loss on drying:1.5% Max Bulk Density :1.667 g/cc Packing 50 lb bag, 44 bags per pallet

Sodium thisulfate is a common thiosulfate, a colorless transparent monoclinic crystal or white crystalline powder. Odorless, salty. The relative density is 1.667. Sodium thiosulfate is easily soluble in water and reacts with strong acid to produce sulfur and sulfur dioxide gas.Sodium thiosulfate is an antidote to cyanide. It is colorless, transparent crystal or crystalline fine grain. 1.It is used chemical raw material used as a fixer in the photographic, film and printing industries. 2.Used as a reducing agent in tanning. It is used in the paper and textile industries to remove residual bleach and as a mordant. 3.Used in medicine as an antidote for cyanide poisoning, etc. 4.In water treatment: a) It is used as a dechlorination agent and fungicide for drinking water and wastewater. b) Copper corrosion inhibitor for circulating cooling water. c) Deoxidizer for boiler water system. d) It is also used for the treatment of cyanide-containing wastewater.