Sodium Thiosulphate/ Sodium Hyposulfite
Sodium thiosulfate pentahydrate (baking soda/Haibo) is a colorless and transparent crystal. It is a hydrate of sodium thiosulfate, soluble in water, and the aqueous solution is weakly alkaline. It weathers in the dry air above 33 ° C and loses crystal water. It is stable in neutral and alkaline solutions and will decompose rapidly in acidic solution.
Main Characteristic of Sodium Thiosulphate:
1.colorless and transparent crystal.
2.It is a hydrate of sodium thiosulfate, soluble in water, and the aqueous solution is weakly alkaline.
3. It weathers in the dry air above 33 ° C and loses crystal water.
4. It is stable in neutral and alkaline solutions and will decompose rapidly in acidic solution.
Specification of Sodium Thiosulphate:
|
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 |
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|
Granularity(g/g) |
12~16 |
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Applications of Sodium Thiosulphate:
1. Used in photographic and electroplate applications.
2. For purifying soft water and tanning hides.
3.As a reducing agent, fixers, blush preventive agent, deoxidizer, sulfur dyeing agent, anti-whiting agent, detergent, disinfectant and color faking agent.
Package & Storage of Sodium Thiosulphate:
25 KG bag , 20 MT/20'FCL .
also be packed according to customer's needs.
Store closed containers in a cool, dry, well-ventilated area. Avoid exposure to direct sunlight.
