
| Potassium nitrate AR 500GM | |||
| 21320SG500 | 960130312FZ | ||
| AR | 9601303 | ||
| 7757-79-1 | 118353 | ||
| KNO3 | June 2026 | ||
| 101.1 | May 2031 | ||
| Sr.No. | Test | Result | Specification | Method Reference |
|---|---|---|---|---|
| 1 | Description | Colourless crystalline powder. | Colourless crystals/crystalline powder. | |
| 2 | Solubility | Complies | Soluble in water. | |
| 3 | Assay | 99.71% | Min. 99.50% | |
| 4 | pH(5% aq soln) | 5.89 | 5.0 - 7.5 | |
| 5 | Insoluble matter | 0.002% | 0.003% max. | |
| 6 | Chloride (Cl) | Less than 0.001% | 0.001% max. | |
| 7 | Sulphate (So4) | Less than 0.003% | 0.003% max. | |
| 8 | Nitrite (NO2) | Less than 0.001% | 0.001% max. | |
| 9 | Iron (Fe) | Less than 0.0003% | 0.0003% max. | |
| 10 | Heavy metal (as Pb) | Less than 0.0005% | 0.0005% max. | |
| 11 | Sodium (Na) | Less than 0.1% | 0.1% max. |
| Tested By (Chemist - Quality Control) | Approved By (Head - Quality Control) |