... 99% is used in fixers, plating, leather, reductant, dechlorinating agent, sulfur dyeing agent.1.Another name: Sodium thiosulfate 2. Molecular formula ... ). 5.Application:used in fixers, plating, leather, reductant, dechlorinating agent, sulfur dyeing agent, as a blush preventive agent, and as a ... transparent crystalwhite powderAssay≥99.00%≥98.5%≥97.0%Water Insoluble matter≤0.01%≤0.03%≤0.03%Sulfide≤0.001 ...