Place of Origin : Xingtai,China

Formula : (NH2SO3H)
CAS : 5329-14-6
Appearance : White , fine crystalline powder
Specification :
Items Grade A Grade B Grade C
Purity(NH2SO3H) 99.8% min 99.5% min 99.5% min
Sulfate (SO4) 0.02% max 0.05% max 0.05% max
Iron (Fe) 0.0002% max 0.0005% max 0.002% max
Heavy Metal 0.0005% max 0.001% max 0.001% max
Insoluble in water 0.01% max 0.01% max 0.02% max
Moisture 0.03% max 0.05% max 0.05% max