| Property | Specification | Test Method |
|---|---|---|
| Assay (KMnO₄) | ≥ 99.0% | Titrimetry |
| Appearance | Deep purple crystals | Visual |
| Solubility in Water | Freely soluble | Visual |
| Residue on Ignition | ≤ 0.1% | Gravimetry |
| Chloride (Cl) | ≤ 0.005% | Silver Nitrate Precipitation |
| Sulfate (SO₄) | ≤ 0.01% | Barium Chloride Precipitation |
| Loss on Drying | ≤ 0.5% | Loss on Drying at 105°C |
