1 | Appearance | Colourless crystals, deliquescent | Colourless or faintly pink or faintly yellowish crystals or crystalline masses, deliquescent |
2 | Solubility | Complies | Soluble in water, very soluble in ethanol (96%), in glycerol and in methylene chloride. |
3 | Identification A (By Chemical test) | Complies | A blue color should develop and become progressively more intense |
4 | Identification B (By Chemical test) | Complies | A violet color should produce which should disappear on additoin of 2-propanol |
5 | Identification C (By Chemical test) | Complies | A white precipitate should form |
6 | Appearance Solution | Complies | Solution should be clear and not more intensely coloured than refrence solution B6. |
7 | Acidity | Complies | The yellow solution. |
8 | Freezing point | 40.0°C | Min. 39.5°C |
9 | Residue on evaporation | 0.004% | 0.05% max. |
10 | Assay | 99.8% | 99.0%-100.5% |