
| Sodium thiosulphate pentahydrate AR/ACS 500GM | |||
| 71710SG500 | 960122828EZ | ||
| AR/ACS | 9601228 | ||
| 10102-17-7 | 118303 | ||
| Na2S2O3.5H2O | May 2026 | ||
| 248.17 | April 2031 | ||
| Sr.No. | Test | Result | Specification | Method Reference |
|---|---|---|---|---|
| 1 | Appearance | Colourless solid | Colourless solid | |
| 2 | Aqueous solubility | Complies | Very soluble | |
| 3 | Assay | 99.6% | 99.5 - 101.0% | |
| 4 | pH of a 5% solution at 25.0°c | 6.11 | 6.0 - 8.4 | |
| 5 | Insoluble matter | 0.002% | 0.005% max. | |
| 6 | Nitrogen compounds(N) | Less than 0.002% | 0.002% max. | |
| 7 | Sulphate & sulphite (as SO4) | Less than 0.1% | 0.1% max. | |
| 8 | Sulphide(S) | Complies | Passes test |
| Tested By (Chemist - Quality Control) | Approved By (Head - Quality Control) |