|
Appearance
|
Reddish pink crystalline powder
|
|
Assay (complexometric)
|
99 - 102%
|
|
pH (5% solution in water)
|
6.0 - 8.0
|
|
Insoluble matter
|
Max 0.01%
|
|
Substances not precipitated by H2S (as SO4)
|
Max 0.3%
|
|
Chloride (Cl)
|
Max 0.002%
|
|
Sulphate (SO4)
|
Max 0.005%
|
|
Nitrate (NO3)
|
Max 0.01%
|
|
Lead (Pb)
|
Max 0.001%
|
|
Copper (Cu)
|
Max 0.002%
|
|
Nickel (Ni)
|
Max 0.01%
|
|
Zinc (Zn)
|
Max 0.01%
|
|
Iron (Fe)
|
Max 0.001%
|
|
Magnesium (Mg)
|
Max 0.005%
|
|
Calcium (Ca)
|
Max 0.005%
|
|
Sodium (Na)
|
Max 0.05%
|
|
Potassium (K)
|
Max 0.01%
|
|
Manganese (Mn)
|
Max 0.01%
|