Physical state at 20 °C | Solid | Odour | Odorless |
Melting point/ Freezing point [°C] | 293°C | Solubility in water [% weight] | Soluble in water |
Colour | White crystalline | pH value | 4 Aqueous solution |
Density [g/cm3] | 4.64 | Boiling point [°C] | 732 °C |
Appearance | White crystalline hygroscopic powder |
Assay | Min 98% |
Insoluble matter | Max 0.005% |
Oxide chloride (as ZnO) | Passes test |
Sulphate (SO4) | Max 0.01% |
Nitrate (NO3) | Max 0.003% |
Lead (Pb) | Max 0.005% |
Iron (Fe) | Max 0.001% |
Magnesium (Mg) | Max 0.01% |
Calcium (Ca) | Max 0.06% |
Sodium (Na) | Max 0.05% |
Potassium (K) | Max 0.02% |
Ammonium (NH4) | Max 0.005% |