Sodium Thiosulphate
Since the inception, we are are supplying and trading Sodium Thiosulphate. This product is widely used in Iodometric applications, photographic processing, and gold extraction and as a component in hand warmers. This chemical is also commonly called as thio-sulphate, this chemical is a colourless crystalline compound in appearance and is more familiar as the penta-hydrate, Na2S2O3,5H2O, an efflorescent, monoclinic crystalline substance also called sodium hypo-sulphite or "hypo." Its chemical formula is Na2S2O3 and is known for its accurate composition and high pH value.
Specification of Sodium Thiosulphate :-
| Grade | Pentahydrate | Anhydrous |
| Mol. Wt |
|
|
| Appearance | White pallets | White Fine Powder |
| Assay | 98% Min. | 98% Min. |
| pH of 5% | 6 to 8 | 6 to 8 |
| Chloride | 0.05 % Max. | 0.5% |
| Iron | 0.05 % Max. | 0.5% |
| Lead | 5 PPM | 5 PPM |
| Arsenic | 5 PPM | 5 PPM |
Uses of Sodium Thiosulfate Powder :-
To remove chlorine from solns according to the eq. Na2S2O3 4Cl2 5H2O 2NaHSO4 8 HCL and Na2S2O3 2 HCL.
As "antichlor" in bleaching of paper pulp, as fixer in photography. For extraction of silver from ores as mordant in dyeing and printing textiles: reducer in chrome dyeing manufacture leather bleaching bone, straw, ivory also as reagent in analytical chemistry.
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