| Test | Specification | |
|---|---|---|
| Description | White Crystalline Powder | |
| Odour | Odourless | |
| Solubility | Freely Soluble in Water | |
| Identification | To Passes Test | |
| Assay | 98.0% - 102.0% | |
| Clarity of 10% Solution | Clear & Colorless | |
| pH (0.1% Solution in Water) | 9.5 - 10.5 | |
| Water | NMT 5.0% | |
| Related Substances | NMT 1.0% | |
| Chlorides | NMT 300 ppm | |
| Sulphates | NMT 120 ppm | |
