|
Appearance
|
White powder
|
|
Assay (complexometric)
|
95 - 100.5%
|
|
Identity
|
Passes test
|
|
Appearance of solution
|
Passes test
|
|
Substance soluble in water
|
Max 1%
|
|
Substance insoluble in acetic acid
|
Max 0.1%
|
|
Chloride (Cl)
|
Max 0.1%
|
|
Sulphate (SO4)
|
Max 0.5%
|
|
Heavy metal (as Pb)
|
Max 0.003%
|
|
Arsenic (As)
|
Max 0.0004%
|
|
Calcium (Ca)
|
Max 1.5%
|
|
Loss on ignition (at 900°C)
|
30 - 32.5%
|
|
Iron (Fe)
|
Max 0.07%
|