... ZnSO4:98%,99%Min 4)Appearance:White crystal powder,granular Food Grade Zinc Sulfate Heptahydrate 1) Physical and chemical property:Molecular ... .00054) Packing Details:The goods will be packed in 25kgs, 50kgs plastic woven bag within PP liner, or 1000kgs to ... in cool and ventilated place ,keep away from fire, heat and sunshine, sealed package. Stay away from oxide Zinc Sulfate Heptahydrate Food Grade ...