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Item	Purity
Content	98%min
Zinc	35% min
As	10ppm max
Pb	20ppm max
Cd	20ppm max

Item	Putiry
Assay as ZnSo4.7H2O	97.0% min
Zn	22% min
Cl	0.6% max
Pb	0.002% max
Fe	0.005% max
Mn	0.01% max
Cd	0.002% max
As	0.005%max
Water Insoluble	0.05% max
PH	3.0

Zinc sulphate monohydrate or heptahydrate