|
Appearance
|
Violet crystalline powder
|
|
Assay (iodometric)
|
99 - 102%
|
|
Substance insoluble in water
|
Max 0.01%
|
|
Chloride (Cl)
|
Max 0.002%
|
|
Lead (Pb)
|
Max 0.005%
|
|
Copper (Cu)
|
Max 0.001%
|
|
Nickel (Ni)
|
Max 0.001%
|
|
Iron (Fe)
|
Max 0.01%
|
|
Aluminium (Al)
|
Max 0.005%
|
|
Ammonium (NH4)
|
Max 0.01%
|
|
Heavy metal (as Pb)
|
Max 0.01%
|