Appearance | White crystalline powder |
---|---|
Assay (T) | 99.7-100.3%w/w |
Ammonium (NH4) | max. 0.0005% |
Chloride (Cl) | max. 0.003% |
Calcium (Ca) | max. 0.02% |
Heavy metals (as Pb) | max. 0.0005% |
Iron (Fe) | max. 0.001% |
Phosphate (PO4) | max. 0.001% |
Potassium (K) | max. 0.005% |
Magnesium (Mg) | max. 0.005% |
Sulfate (SO4) | max. 0.003% |
Insoluble matter | max. 0.015% |