Physical Properties
| Physical state at 20 °C | Solid | Odour | Slight acetic acid |
| Melting point/ Freezing point [°C] | 58 °C | Solubility in water [% weight] | 408 g/l at 20 °C – completely soluble |
| Colour | White crystalline | pH value | 8.5 – 10 at 408 g/l at 25 °C |
| Density [g/cm3] | 1.45 | Auto-ignition temperature [°C] | 600 °C |
Packings
50kg
25kg
5000g
500g
Specifications
| Appearance | White crystalline powder. |
| Assay | 99.5 – 101% |
| pH (5% solution in water) | 7.5 – 9.2 |
| Insoluble matter | Max 0.005% |
| Chloride (Cl) | Max 0.003% |
| Nitrogen compounds (as N) | Max 0.001% |
| Phosphate (PO4) | Max 0.0005% |
| Sulphate (SO4) | Max 0.002% |
| Calcium (Ca) | Max 0.001% |
| Iron (Fe) | Max 0.0005% |
| Lead (Pb) | Max 0.0005% |
| Magnesium (Mg) | Max 0.002% |
| Potassium (K) | Max 0.005% |
| Substance reducing KMnO4 (as O) | Passes test |
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