Sodium Thiosulfate

monoclinic crystal,used in fixers, plating, leather, reductant 1, Chemical name: Sodium thiosulfate 2, Structural formula:3, Molecular formula: Na2S2O2·5H2O4, Molecular weight: 248.175, Properties: monoclinic crystal, Melting point : 40-45, Relative density :1.729(17). 6, Quality standard:

Item	Photo grade	Tech grade	Anhydrous grade
Appearance	colorless transparent crystal	colorless transparent crystal	white powder
Assay	≥99.00%	≥98.5%	≥98.0%
Water Insoluble matter	≤0.01%	≤0.03%	≤0.03%
Sulfide	≤0.001%	≤0.003%	≤0.001%
Fe	≤0.001%	≤0.003%	≤0.001%
PH value	6.5-9.5	6.5-9.5	6.5-9.5
Granularity	12-16	--	--

7, Packing:25kg, 50kg plastic woven bag, or following your demand. 8, Uses: used in fixers, plating, leather, reductant, dechlorinating agent, sulfur dyeing agent, as a blush preventive agent, and as a disinfectant. and decolor agent

Sodium Thiosulfate