ITEM | STANDARD | |
Appearance | White Crystalline Powder | |
Identification | Positive | |
Whiteness | > 80 | |
Assay | > 99% | |
Loss on Drying | =< 0.5% | |
Acidity and Alkalinity | =< 1% | |
Solubility | Freely soluble in water, practically insoluble in ethanol | |
Heavy Metals (as Pb) | =< 1mg/ kg | |
Arsenic | =< 0.5mg/ kg | |
Ammonium (as NH﹢4) | =< 100mg/ kg | |
Sodium Chloride | =< 1.45% | |
Water Insoluble Impurities | =< 0.05% | |
Water Insoluble Residue | =<0.05% |