| Identification | |
| Name: | Sodium thiosulfate |
| Synonyms: | Thiosulfuric acid, disodium salt (8CI);Ametox;Antichlor;Chlorine Control;Chlorine Cure;Declor-It;Desilube 88;Disodium thiosulfate;Disodium thiosulphate;Hypo;S-Hydril;Sodiumhyposulfite; |
| CAS: | 7772-98-7 |
| EINECS: | 231-867-5 |
| Molecular Formula: | Na2S2O3 |
| Molecular Weight: | 158.1 |
| InChI: | InChI=1/2Na.H2O3S2/c;;1-5(2,3)4/h;;(H2,1,2,3,4)/q2*+1;/p-2 |
| Molecular Structure: |  |
| Properties | |
| Stability: | Stable. Incompatible with strong acids, strong oxidizing agents, iodine, mercury. |
| Solubility: | 500 g/L |
| Appearance: | colourless crystals or white powder |
| Specification: | Sodium thiosulfate , its CAS NO. is 7772-98-7, the synonyms are Sodium hyposulfite ; Sodium subsulfite. |
| Report: | Reported in EPA TSCA Inventory. |
| Sensitive: | Hygroscopic |
| Color: | Powder Colorless monoclinic crystals |
| Usage: | To remove chlorine from solution, as antichlor in bleaching of paper pulp, fixer in photography, mordant in dyeing & printing textiles, reducer in chrome dyeing, manufacture leather, extracting of silver from ores, bleaching bone, straw, ivory, reagent in analytical chemistry, antidote (cyanide poisoning). |
| Safety Data | |
| Hazard Symbols |
Xi:Irritant
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