China Industrial Grade 99% Sodium Thiosulfate

Sodium thiosulfate 99% Industrial grade Sodium thiosulfate (Na2S2O3), also spelled sodium thiosulphate, is a colorless crystalline compound that is more familiar as the pentahydrate, Na2S2O3·5H2O, an efflorescent, monoclinic crystalline substance also called sodium hyposulfite or "hypo." The thiosulfate anion is tetrahedral in shape and is notionally derived by replacing one of the oxygen atoms by a sulfur atom in a sulfate anion. The S-S distance indicates a single bond, implying that the sulfur bears significant negative charge and the S-O interactions have more double bond character. The first protonation of thiosulfate occurs at sulfur. Packing: in 25KG plastic woven bag Usage: It is the fixing agent of photograph, antichlor and printing auxiliary of textile, printing and dyeing industry, and also used in manufacturing of synthetical dye, insecticides, synthetic fabrics. Moreover it is still used in medicine, leather, paper making and mineral concentration industries, etc .

Appreance light yellow transparency Purity99%minWater insoluble 0.01%maxNa2S0.001%maxFe0.002%maxPH6.5-9.5