Sodium thiosulphate pentahydrate extrapure 5KG | |||
11710SR500 | 919140210KW | ||
Extrapure | 9191402 | ||
10102-17-7 | 98945 | ||
Na2S2O3.5H2O | November 2023 | ||
248.17 | October 2028 | ||
Sr.No. | Test | Result | Specification |
---|---|---|---|
1 | Description | Colourless crystals free from white powder. | Colourless crystals free from white powder. |
2 | Solubility | Complies | 10% solution in water should be clear. |
3 | Assay(iodometric) | 99.4% | Min. 99.0% |
4 | Sulphate & sulphite (as SO4) | Less than 0.1% | 0.1% max |
5 | Sulphide(S) | Less than 0.001% | 0.001 % max |
6 | Iron(Fe) | Not detected | 0.001 % max |
7 | Potassium(K) | 0.003% | 0.1% max |
Tested By (Chemist - Quality Control) | Approved By (Head - Quality Control) |