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Appearance
|
A white crystalline powder
|
|
Assay (complexometric)
|
Min 98% (by titration of cadmium)
|
|
Sulphate (SO4)
|
Max 0.02%
|
|
Lead (Pb)
|
Max 0.005%
|
|
Copper (Cu)
|
Max 0.002%
|
|
Iron (Fe)
|
Max 0.001%
|
|
Zinc (Zn)
|
Max 0.02%
|
|
Substance not precipitated by H2S (as SO4)
|
Max 0.2%
|