Physical state at 20 °C | Solid | Odour | Odorless |
Melting point/ Freezing point [°C] | 275°C | Solubility in water [% weight] | 42 g/100 g water @ 170C |
Colour | White crystalline | pH value | 10 at 65 g/l at 25 °C |
Density [g/cm3] | 1.85 | Vapour pressure [20°C] | 0.01 hPa at 20 °C |
Vapour density | 2.2 |
Appearance | White crystalline powder |
Assay | Min 99% |
Insoluble matter | Max 0.005% |
Chloride (Cl) | Max 0.005% |
Sulphate (SO4) | Max 0.005% |
Chromium (Cr) | Max 0.005% |
Copper (Cu) | Max 0.005% |
Iron (Fe) | Max 0.005% |
Lead (Pb) | Max 0.005% |