|
Appearance
|
White powder
|
|
Assay (complexometric; on dried basis)
|
98-100.5%
|
|
Identification
|
Passes test
|
|
Substance insoluble in acetic acid
|
Max 0.2%
|
|
Chloride (Cl)
|
Max 0.025%
|
|
Sulphate (SO4)
|
Max 0.3%
|
|
Heavy metal (as Pb)
|
Max 0.002%
|
|
Iron (Fe)
|
Max 0.02%
|
|
Barium (Ba)
|
Passes test
|
|
Arsenic (As)
|
Max 0.0004%
|
|
Magnesium (as alkali metals)
|
Max 1.0%
|
|
Loss on drying (200°C; 4 hrs)
|
Max 2.0%
|