Physical state at 20 °C | Solid | Odour | Odorless |
Melting point/ Freezing point [°C] | 361 °C | Solubility in water [% weight] | Insoluble in water |
Colour | White flakes | ||
Density [g/cm3] | 2.04 |
Appearance | White deliquescent pellets |
Assay (as KOH) | 85.0- 100.5% |
Identification | Passes test |
Appearance of solution | Passes test |
Carbonate (as K2CO3) | Max 1.0% |
Chloride (Cl) | Max 0.005% |
Phosphate (PO4) | Max 0.0005% |
Sulphate (SO4) | Max 0.003% |
Heavy metal (as Pb) | Max 0.001% |
Iron (Fe) | Max 0.001% |
Total nitrogen (N) | Max 0.001% |
Calcium (Ca) | Max 0.005% |
Nickel (Ni) | Max 0.001% |
Sodium (Na) | Max 0.5% |