sodium thiosulphate 99%

sodium thiosulphate 1.Another name: Sodium thiosulfate 2. Molecular formula: Na2S2O2 .5H 2O 3. Molecular weight: 248.17 4.Properties :monoclinic crystal, Melting point : 40 -45oC , Relative density :1.729( 17 oC ). 5.Use:used in fixers, plating, leather, reductant, dechlorinating agent, sulfur dyeing agent, as a blush preventive agent, and as a disinfectant. and decolor agent 6.Packing:25kg , 50kg plastic woven bag, or following your demand. 7.Specification of Sodium Hyposulphite Item Photographic grade Industrial grade Anhydrous grade Appearance colorless transparent crystal colorless transparent crystal white powder Assay ≥99.00% ≥98.5% ≥97.0% Water Insoluble matter ≤0.01% ≤0.03% ≤0.03% Sulfide ≤0.001% ≤0.003% ≤0.001% Fe ≤0.001% ≤0.003% ≤0.005% PH 6.5-9.5 6.5-9.5 6.5 9.5 Water solution reaction in accordance with the test in accordance with the test ---- Granularity(g/g) 12-16 --- ----