Sodium Thiosulfite(HYPO)
be usde in metallurgy,papermaking,oil,textail,soap ect.
best quality&competitive price
free sample
1.Other Names:Sodium Thiosulphate, Hypo.Hyposulphite of Soda
2.Formula : Na2S2O3·3.M.W. : 48.2
4.Packing: 25kg/bag PP/PE
5. Use: Used in fixers, plating, leather, reductant, dechlorinating agent, sulfur dyeing agent, as a blush preventive agent, and as a disinfectant. And decolor agent
6.Appearance: onoclinic system crystal,colorless transparent body.
7.Specifications: Produced in accordance with HG/T2328-92 standard of Chemical Industry Department of China.
Item | 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 |
|
Items | Specification |
Na2S2O3·5H2O | 99.0% min |
Water-insoluble | 0.01% max |
Sulphide(as Na2S) | 0.001% max |
Fe | 0.002% max |
PH Value(200g/l solution) | 6.5~9.5 |
Density and phase | 1.667g/cm³,solid |
Solubility in water | Soluble |
Melting point | 48.3°C |
Boiling point | N/A |
Basicity (pKb) | N/A |