|
Appearance
|
A white crystalline powder
|
|
Assay (Titration after Ion exchange)
|
99 - 100.5%
|
|
Identity
|
Passes test
|
|
Appearance of solution
|
Passes test
|
|
Acidity or alkalinity
|
Passes test
|
|
pH (5% solution in water)
|
5.2 - 8.0
|
|
Chloride (Cl)
|
Max 0.02%
|
|
Heavy metal (as Pb)
|
Max 0.001%
|
|
Arsenic (As)
|
Max 0.0003%
|
|
Calcium (Ca)
|
Max 0.005%
|
|
Iron (Fe)
|
Max 0.001%
|
|
Magnesium (Mg)
|
Max 0.001%
|
|
Loss on drying (at 130°C)
|
Max 0.5%
|