Purity(ZnSO4.H2O)-------------------------------------------- 98%min        

Zn------------------------------------------------------------------ 35.7%min       

PH Value(50g/l)-----------------------------------------------4.0min         

As-------------------------------------------------------------------0.0005%max

Cl--------------------------------------------------------------------- 0.20%max       

Cd-------------------------------------------------------------------------- 0.001%max

 Pb----------------------------------------------------------------------- 0.001%max

 Fe--------------------------------------------------------------- 0.008%max         

 Zinc sulphate(granula)

 Zn------------------------------------------------------------------------35% min

  Pb--------------------------------------------------------------------- 0.001%max

  As---------------------------------------------------------------------- 0.0005%max

 Cd----------------------------------------------------------------------0.001%max

  Size----------------------------------------------------------------2-4mm,1-2mm,0.5-1mm