|
Appearance
|
White Crystalline Powder
|
|
Assay
|
99 - 101%
|
|
Insoluble matter
|
Max 0.01%
|
|
Free alkali (as NaOH)
|
Max 0.02 meq/gm
|
|
Chloride (Cl)
|
Max 0.005%
|
|
Sulphate (SO4)
|
Max 0.01%
|
|
Total nitrogen (N)
|
Max 0.001%
|
|
Heavy metals and iron (as Pb)
|
Max 0.001%
|
|
Molybdenum (Mo)
|
Max 0.001%
|
|
Arsenic (As)
|
Max 0.0005%
|