Physical state at 20 °C | Solid | Odour | Odorless |
Melting point/ Freezing point [°C] | 280°C | Solubility in water [% weight] | soluble in water |
Colour | White Crystalline | Auto-ignition temperature [°C] | 410 °C |
Density [g/cm3] | 1.33 | Flash point [°C] | 250 °C |
Vapour density | 4.9 | Vapour pressure [20°C] | < 0.01 hPa at 20 °C |
Appearance | White crystalline powder |
Assay (by NaOH titration; on dried basis) | Min. 99.0% |
Loss on drying (at 105°C; 4 hrs) | Max. 2.0% |
Residue on ignition (as ash) | Max. 0.1% |
Heavy metal (as Pb) | Max. 0.001% |