... , leather, reductant, dechlorinating agent, sulfur dyeing agent.1.Another name: Sodium thiosulfate 2. Molecular formula: Na2S2O3 .5H 2O 3. Molecular weight: 248 ... plastic woven bag, or following your demand. 7.Specification of Sodium Hyposulphite ItemPhotographic gradeIndustrial gradeAnhydrous gradeAppearancecolorless transparent crystalcolorless transparent crystalwhite powderAssay ...