|
Appearance
|
White crystalline powder
|
|
Assay (on anhydrous basis)
|
97.5-100.5%
|
|
Identification A & B as per USP
|
Passes test
|
|
Loss on drying (at 150°C)
|
10.0-13.3%
|
|
Arsenic (As)
|
Max.0.0003%
|
|
Fluoride (F)
|
Max.0.003%
|
|
Heavy metal (as Pb)
|
Max.0.002%
|
|
Acid insoluble matter
|
Max.0.2%
|
|
Lead (Pb)
|
Max.0.001%
|