Specification :

Assay (C2H7NO3S),% Min 98.5
Appearance A white crystalline powder, odorless
Identification Positive
Clarity of solution Clear and colorless
Chloride(as Cl),% Max 0.011
Sulphate(as SO4),% Max 0.014
Ammonium (as NH4),% Max 0.02
Heavy metals (as Pb),% Max 0.002
Arsenic (as As),% Max 0.0002
Readily carbonizable substances No color develops
Loss on drying,% Max 0.2
Residue on ignition,% Max 0.1