21 Percent Zinc SulphateÂ is mainly used as a fertilizer additive for preventing zinc deficiency and promote proper metabolism in plants and animals. It is vital for synthesis of protein in animals. It is in the form of white granules, slightly alkaline in solution and utilized as sodium borate in the industry for several applications. Furthermore, our professionals fabricate this array keeping in mind the current market developments. Our customers can attain this 21 Percent Zinc Sulphate at most reasonable costs.