| Description |
White or almost white powder or colourless crystals; odourless |
| Solubility |
Very soluble in water and even more soluble in boiling water, freely soluble in glycerol, soluble inethanol |
| Appearance of solution |
10 % aqueous solution is clear and colourless
C |
| Alkalinity |
Passes as per Pharmacopoeia |
| Iodates |
Passes as per Pharmacopoeia |
| Sulphates |
Passes as per Pharmacopoeia |
| Thiosulphates |
Passes as per pharmacopoeia |
| Heavy metals |
Passes as per Pharmacopoeia |
| Potassium |
Passes as per pharmacopoeia |
| Barium |
Passes as per pharmacopoeia |
| Nitrate, Nitrite &Ammonia |
Passes as per pharmacopoeia |
| Iron |
Passes as per pharmacopoeia |
| Loss on drying |
Not more than 1.0 % w/w |
| Assay |
Between 99.0 and 100.5 % w/w |