China Sodium Thiosulfate Crystals Photo Grade, Inorganic Chemicals, Uncaking Colorless, Find details about China Sodium Thiosulfate, Sodium Thiosulfate Industrial Grade from Sodium Thiosulfate Crystals Photo Grade, Inorganic Chemicals, Uncaking Colorless
Product Name: SODIUM THIOSULFATE / SODIUM HYPOSULFIDE
CAS:7772-98-7
Molecular Formula: Na2S2O2•5H2O
Molecular weight: 248.17
Package:25kg, 50kg pp woven bag
Application:
It is usded as fixing agent in photo, reductant, dechlorinating agent, sulfur dyeing agent, disinfectant and decolor agent and applied in electrofacing, leather, etc.
Specification:
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 | --- | ---- |