| ≥1 piece |
|
Parameter
|
Standard
|
|
|
Appearance
|
White crystal
|
|
|
Assay ,%
|
98-101
|
|
|
PH,5% solution
|
7.0-9.0
|
|
|
Loss on drying(120C,2hr) ,%
|
37-41()
|
≤2.0()
|
|
Lead(as Pb),%
|
≤0.002
|
|
|
Sulphate(as SO 4 ),%
|
≤0.019
|
|
|
Heavy Metals,%
|
≤0.002
|
|
|
Readily oxidizable substance
|
Red Color will be sustained 3 minutes as least
|
|