|
Appearance
|
White crystalline powder
|
|
Assay (complexometric)
|
99.0-103.0%
|
|
Insoluble matter (10% in water)
|
Max 0.01%
|
|
pH
|
pH 4.4 - 6.0
|
|
Chloride (Cl)
|
Max 0.0005%
|
|
Calcium (Ca)
|
Max 0.005%
|
|
Iron (Fe)
|
Max 0.001%
|
|
Potassium (K)
|
Max 0.01%
|
|
Magnesium (Mg)
|
Max 0.005%
|
|
Sodium (Na)
|
Max 0.05%
|
|
Ammonium (NH4)
|
Max 0.001
|
|
Nitrate (NO3)
|
Max 0.002%
|
|
Manganese (Mn)
|
Max 0.0003%
|
|
Lead (Pb)
|
Max 0.003%
|