| M | 53.49 |
|---|---|
| m.p | 340 °C |

| Identification A | Complying |
| Identification B | Complying |
| White to colorless crystalline powder | Complying |
| Freely soluble in water | Complying |
| Appearance of solution | Complying |
| Assay | 99.0-100.5% |
| Acidity or Alkalinity | Complying |
| Bromides & Iodides | Complying |
| Sulfate (SO4) | max. 0.0150% |
| Calcium (Ca) | max. 0.020% |
| Iron (Fe) | max. 0.0020% |
| Heavy metals (as Pb) | max. 0.001% |
| Loss on drying (105°C) | max. 1.0% |
| Sulphated ash | max. 0.1% |