|
Appearance
|
White to off white to pink colored powder
|
|
Assay
|
98.0 - 101.0%
|
|
Insoluble matter
|
Max 0.01%
|
|
Chloride (Cl)
|
Max 0.005%
|
|
Calcium (Ca)
|
Max 0.005%
|
|
Iron (Fe)
|
Max 0.002%
|
|
Heavy metal (as Pb)
|
Max 0.002%
|
|
Magnesium (Mg)
|
Max 0.005%
|
|
Nickel (Ni)
|
Max 0.02%
|
|
Potassium (K)
|
Max 0.01%
|
|
Sodium (Na)
|
Max 0.05%
|
|
Zinc (Zn)
|
Max 0.005%
|
|
Substance reducing KMnO4 (as O) - ACS
|
Passes test
|
|
Loss on ignition (at 400-500°C)
|
10 - 12%
|