Physical state at 20 °C | Solid | Odour | Slight odor of ammonia |
Melting point/ Freezing point [°C] | > 280 °C | Solubility in water [% weight] | 750 g/l at 20 °C – completely soluble |
Colour | Colorless crystals | pH value | 5-6 |
Density [g/cm3] | 1.77 | Partition coefficient Log Pow octanol / water at 20°C | -5.1 |
Appearance | Colourless crystals/ white crystalline powder |
Assay (titration) | Min.99.0% |
Insoluble matter | Max 0.005% |
pH (5% solution in water; 25°C) | 5.0 to 6.0 |
Residue on ignition | Max 0.005 % |
Loss on drying (at 105°C) | Solid |
Heavy metals (by ICP-OES) | Max 0.0005% |
Chloride (Cl) | Max 0.0005% |
Nitrate (NO3) | Max 0.001% |
Phosphate (PO4) | Max 0.0005% |
Iron (Fe) | Max 0.0005% |