| Description |
White, granular crystals or a white, crystalline powder
|
Identification |
Passes test
|
| Appearance of solution |
Solution A is clear and colourless
|
Acidity or alkalinity |
Not more than 0.5 ml of 0.05 M sulphuric acid or of 0.1 M sodium hydroxide is required
|
| Readily carbonisable substance |
Passes test
|
Water |
11.0 to 13.0 %
|
| Assay (on anhydrous basis) |
99.0 – 101.0%
|