| Customization: | Available |
|---|---|
| CAS No.: | 7772-98-7 |
| Formula: | Na2s2o3 |
|
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Sodium thiosulfate, and sodium sulfite, baking soda, Hibber, is a common thiosulfate, the chemical formula Na2S2O3, is sodium sulfate in an oxygen atom replaced by sulfur atoms of the product, so the oxidation number of two sulfur atoms are -2 and +6
Product Name:Sodium Thiosulphate
Other Name: Sodium hyposulfite
Appearance: Colorless and transparent crystal
Granular Mesh Size:8-10mm,5-8mm,1-3mm,3-5mm
CAS No.: 7772-98-7
HS Code:2830909000
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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1. Mainly used as fixer in photographic industry. Secondly, it is used as a reducing agent for dichromate when tanning leather, a neutralizing agent for nitrogen-containing tail gas, a mordant, a bleaching agent for wheat straw and wool, and a dechlorinating agent for pulp bleaching. It is also used in the manufacture of dye intermediates, etc. and the extraction of silver from ore.
2. Detoxification, Sodium thiosulfate (sodium hyposulfite, soda, hypo) is an antidote for cyanide.
Packing: 25kg PP/ PE bags, 25MT/20'FCL;1000kg bag, 20MT/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.
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