|
Chloride
|
≤0.05%
|
|
Heavy metals
|
≤10ppm
|
|
Loss on drying
|
≤0.30%
|
|
Residue on ignition
|
≤0.30%
|
|
Assay
|
98.5-101.5%
|
|
Iron
|
≤0.003%
|
