| Appearance |
White to almost white, crystalline powder or small flakes, melt at 270°C |
Assay (Potentiometric; on anhydrous basis) |
99.0-101.0% |
| Solubility |
Sparingly soluble in water, very slightly soluble in alcohol. It dissolves in dilute acids and in dilute solutions of the alkali hydroxides |
Identifications |
To comply BP test |
| Appearance of solution |
To comply BP test |
Loss on drying (at 105°C; 3 hrs) |
Max 0.5% |
| pH (2% solution in water) |
5.4 to 6.1 |
Chlorides |
Max 0.02% |
| Sulphated ash |
Max 0.1% |
Related Substances ( by TLC) |
To comply BP test |
