M | 110.98 |
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Appearance | White to off-white solid |
---|---|
Assay (on dry basis) | min. 95.0% |
Alkalinity [as Ca(OH)2] | max. 5.0% |
Arsenic (As) | max. 0.0003% |
Heavy metals (as Pb) | max. 0.002% |
Magnesium and Alkaline earth metals | max. 0.05% |
Sulfate (SO4) | max. 0.01% |
pH (5% in water) | 4.5-9.2 |