Sodium Thiosulfate used in fixers, plating, leather, reductant, dechlorinating agent, sulfur dyeing agent... Sodium ThiosulfateMolecular Formula : Na2S2O2*5H2OMolecular Weight : 248.17Properties : monoclinic crystal ... in woven PE bag with PP bag inside, net weight of 25kg/bag or 50kg/bagUses : used in fixers, plating, ... agent, and as a disinfectant, and decolor agent. Supply Sodium Thiosulfate