Zinc Sulphate 35% Mono powder & granular Heptahydrate crystal Use: fertilizer, water purification... in 25kg pp bag Zinc SulphateCAS No.: 7446-20-0Zinc sulphate98%(powder)For Industry(HG/T2326-92)Purity(ZnSO4.H2O)-------------------------------------------- 98%min , Zn------------------------------------------------------------------ 35.7%min , PH Value(50g/l):------------------------------------------------4.0min , As-------------------------------------------------------------------0.0005%maxCl--------------------------------------------------------------------- 0.20%max , Cd-------------------------------------------------------------------------- 0.001%maxPb----------------------------------------------------------------------- 0.001%maxFe--------------------------------------------------------------- 0.008%max , Zinc sulphate(granula)Zn------------------------------------------------------------------------35% minPb--------------------------------------------------------------------- 0.001%maxAs---------------------------------------------------------------------- 0.0005%maxCd----------------------------------------------------------------------0.001%maxSize----------------------------------------------------------------2-4mm,1-2mm,0.5-1mmAppearance: White Powder or GranulePacking: 25kg in net PP bag, 20MT in the 20'FCLUsage:As Zinc additive in feed-processing, activator in latex paper; trace nutrient in animal feeds; fertilizer ingredient; zinc salts; ore flotation; fungicide; water purification. Pls feel free to contact us if you are interested in it.