ZnSO4.H2O 98.0 % Min.
Zn Content 35.7 % Min.
Water Insoluble 0.02 % Max.
pH Value (50g/L solution) 4.0 Min.
Cl 0.2 % Max.
Pb 0.002 % Max.
Fe 0.008 % Max.
Mn 0.01 % Max.
Cd 0.002 % Max.
Cu 0.001 % Max.