... free flowing, the best quality, you've never experienced, BASIC INFORMATION: CAS No.: 7446-19-7 H.S. ... ppm max Size: 80/200mesh USAGES:1, Zinc sulfate is used as trace element fertilizer to prevent crops ... more farmers apply micronutrient fertilizers such as zinc sulfate.2, It can be used as feed additive ... and bone disease.3, In industry field, zinc sulfate works as coagulator for man made fibril, and ...