| Description |
White powder |
| Assay |
Min. 99.0% |
| Substance insoluble in dilute H2SO4 |
Substance insoluble in dilute H2SO4 |
| Free alkali |
Passes test |
| Chloride (Cl) |
Max. 0.001% |
| Sulphate (SO4) |
Max. 0.01% |
| Cadmium (Cd) |
Max. 0.0005% |
| Calcium (Ca) |
Max. 0.001% |
| Melting point/Freezing point (˚C) |
1975˚C |
| Solubility in water (% weight) |
Insoluble in water |
| Arsenic (As) |
Max. 0.0001% |
| Sodium (Na) |
Max. 0.0001% |
| Total nitrogen (N) |
Max. 0.0005% |
| Lead (Pb) |
Max. 0.002% |
| Copper (Cu) |
Max. 0.0005% |
| Iron (Fe) |
Max. 0.0005% |
| Manganese (Mn) |
Max. 0.0005% |
| Substance reducing KMnO4 (as O) |
Max. 0.0008% |
