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By certification 
Sodium Thiosulfate, colorless crystal, odorless, it has a cool and bitter taste. The specific gravity is 1.729, heated to 100 °C, and 5 crystal glasses of water are lost. It is soluble in water and insoluble in alcohol, and it has strong reducibility. It is easily weathered in dry air above 33 °C and deliquescent in the humid air.
DESCRIPTION
SODIUM THIOSULFATE
Commodity：Sodium Thiosulfate
Physical and Chemical Property: White Crystal
Molecular Formula: Na2O3S2.5H2O
CAS No.: 10102-17-7
Einecs No.:231-867-5
Molecular weight:158.12
Storage: Store the product in a cool and dry place.
Packing: 25kg PP bags,1ton bag
Specification
TEST ITEMS |
SPECIFICATION |
RESULT OF TEST REPORT |
ASSAY: |
99.00% MIN |
99.10% |
WATER INSOLUBLE: |
0.01% MAX |
0.007% |
SULPHIDES: |
0.001% MAX |
0.0008% |
Fe: |
0.001% MAX |
0.0005% |
S |
0.001% MAX |
0.0007% |
Application
1. It is used as a fixing agent in the photography industry.
2. It is widely used for purifying soft water.
3.Used as a reducing agent of bichromate in tanning production.
4. It widely used as a detergent agent and disinfector in the medical industry.
5.As decolorant in paper making industry.
6. It also can be used as a dechlorination agent after the bleaching of cotton fabrics and paper pulp.
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