
| Sodium sulphite anhydrous AR 500GM | |||
| 21690SG500 | 950550309CZ | ||
| AR | 9505503 | ||
| 7757-83-7 | 115341 | ||
| Na2SO3 | March 2026 | ||
| 126.04 | February 2031 | ||
| Sr.No. | Test | Result | Specification | Method Reference |
|---|---|---|---|---|
| 1 | Description | A white crystalline powder. | A white crystalline powder. | |
| 2 | Solubility | Complies | 10% solution in water should be clear. | |
| 3 | Assay(iodometric) | 97.53% | Min. 97.00% | |
| 4 | Insoluble matter | 0.002% | 0.003% max | |
| 5 | Chloride(Cl) | Less than 0.04% | 0.04% max | |
| 6 | Thiosulphate(S2O3) | Less than 0.05% | 0.05% max | |
| 7 | Iron(Fe) | Less than 0.001% | 0.001% max | |
| 8 | Lead(Pb) | Less than 0.001% | 0.001% max |
| Tested By (Chemist - Quality Control) | Approved By (Head - Quality Control) |