1.Chemical name: Sodium thiosulfate pentahydrate 2.H.S code: 2832800000 3.Molecular formula: Na2S2O3*5H2O 4. Molecular weight: 248.17 5. Packing: 25kg, 50kg plastic woven bag, or following your demand.  Application of Sodium Thiosulfate pentahydrate:  Used in fixers, plating, leather, reductant, dechlorinating agent, sulfur dyeing agent, as a blush preventive agent, and as a disinfectant. And decolor agent. If you have any interest in our product sodium thiosulphate, please feel free to contact me. Regards, Jessica