Sodium Thiosulfate photo grade/ tech grade/anhydrous
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Sodium Thiosulfate used in fixers,plating,leather,reductant,dechlorinating agent,sulfur dyeing agent,as a blush preventive agen
Sodium Thiosulfate
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 | --- | ---- |
