|
Appearance
|
White crystalline hygroscopic powder
|
|
Assay
|
Min 98%
|
|
Insoluble matter
|
Max 0.005%
|
|
Oxide chloride (as ZnO)
|
Passes test
|
|
Sulphate (SO4)
|
Max 0.01%
|
|
Nitrate (NO3)
|
Max 0.003%
|
|
Lead (Pb)
|
Max 0.005%
|
|
Iron (Fe)
|
Max 0.001%
|
|
Magnesium (Mg)
|
Max 0.01%
|
|
Calcium (Ca)
|
Max 0.06%
|
|
Sodium (Na)
|
Max 0.05%
|
|
Potassium (K)
|
Max 0.02%
|
|
Ammonium (NH4)
|
Max 0.005%
|