Physical state at 20 °C | Solid | Odour | Odorless |
Melting point/ Freezing point [°C] | 255 – 280 °C | Solubility in water [% weight] | 40.4 g/l at 20 °C |
Colour | White powder | pH value | 4 – 5 at 40.4 g/l at 25 °C |
Appearance | White powder or crystalline Powder |
Assay (complexometric) | Min 98% |
Loss on drying (at 150°C; 6 hrs) | 8.5 – 9.5% |
pH (5 % solution) | 4 – 5.5 |
Insoluble matter in water | Max 0.02% |
Chloride (Cl) | Max 0.05% |
Nitrilotriacetate [N(CH2COO)3] | Max 0.1% |
Copper (Cu) | Max 0.001% |
Heavy metal (as Pb) | Max 0.001% |
Iron (Fe) | Max 0.001% |