Feed & Agriculture. We are one of the leading Manufacturer and Exporter of Zinc Sulphate Monohydrate. Zinc sulphate monohydrate is a colorless crystalline, water-soluble chemical compound. Zinc Sulphate Monohydrate is prepared by reacting zinc with light aqueous sulfuric acid. It can be used as a spray dying material. It is properly packed in 25kg bags with liner so that its purity and efficacy is maintained till the very end. Our zinc sulfate has only one standard, ultra white,Zn 35%.