Product Name: Sodium thiosulfate
CAS:7772-98-7
Molecular Formula: Na2S2O2
Molecular weight: 248.17
Package:25kg, 50kg pp woven bag
Buy Sodium thiosulfate 99.5%, purchase online available.
Properties
Colorless and transparent monoclinic crystal, odorless, taste salty,Soluble in water, insoluble in alcohol, decomposed in acidic solution, with a strong reduction. It is easily weathered in dry air above 33°C and deliquescent in humid air.
Specification
Item |
Index |
|
Photographic grade |
Industrial grade |
|
Appearance |
colorless transparent crystal |
colorless transparent crystal |
Assay |
≥99.00% |
≥98.5% |
Water Insoluble matter |
≤0.01% |
≤0.03% |
Sulfide |
≤0.001% |
≤0.003% |
Fe |
≤0.001% |
≤0.003% |
PH |
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 |
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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.
Packing
25kg/bag or as per request.
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