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Sodium thiosulfate pentahydrate Quick Details
Chemical Name: Sodium thiosulfate pentahydrate
CAS No.: 10102-17-7
Molecular Fomula: H10Na2O8S2
Molecular weight: 248.18
Appearance:Colorless Transparent Crystal
Assay: 98%
Sodium thiosulfate pentahydrate Typical Properties
| Item | Specifications | Test results |
| Appearance | Colorless Transparent Crystal | Pass |
| Purity | ≥99.00% | 99.17% |
| Insoluble substance in water | ≤0.01% | <0.01% |
| Sulphide | ≤0.001% | <0.001% |
| Fe | ≤0.001% | <0.001% |
| PH(Solution concentration 20%) | 6.5-9.5 | 8.7 |
| Particle size/gram | 12-16 | Pass |
| Conclusion | The results conforms with enterprise standards. | |
Sodium thiosulfate pentahydrate Usage
1.Used as a dechlorination agent for bleached pulp and cotton fabrics, as a chelating agent and antioxidant in the food industry, as a detergent and disinfectant in the pharmaceutical industry.
2.It is used for dehydrochlorination of syngas, hydrogen and nitrogen to protect downstream catalyst from toxicity. If there is organic Cl in the gas, it should be converted to hydrogen chloride by cobalt-molybdenum hydrogenation catalyst, and then absorbed with dechlorinating agent.
3.Used as analytical reagent, mordant and fixative.
4.It is suitable for removing Cl from hydrogen, nitrogen, syngas, carbon dioxide.
5.Photosensitive industry is used as photographic fixative. Paper industry is used as Cl removal agent after pulp bleaching. The printing and dyeing industry is used as a dechlorination agent for cotton fabrics after bleaching. Reagent for chroma analysis and volumetric analysis of analytical chemistry. Pharmaceuticals are used as detergents and disinfectants. The food industry is used as chelating agents, antioxidants and so on.
7.It is used in photography, film, textile, chemical fiber, paper making, leather making and pesticide industry.
8.Used as complexing agent for silver plating of thiosulfate. The silver plating layer has fine crystal structure and good covering ability. The general dosage is 200~250 g/L. It is used as brightener in cyanide silver plating. The dosage is 0.5 to 1.09 g/L. Silver can be crystallized in order to obtain bright and semi bright silver plating.
Sodium thiosulfate pentahydrate Packaging and Shipping
Packing: 25 kg bag
Delivery: by air ,by sea
Sodium thiosulfate pentahydrate Storage
Stored in a cool dry place out of direct sunlight.
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