Kenya Chemical is a world-famous manufacturer, supplier, and exporter of Lab chemicals. Our RXSOL-61-6392-500 Zinc Sulfate Heptahydrate is used to supply zinc in animal feeds, fertilizers, and agricultural sprays. It is used as in electrolytes for zinc plating, as a mordant in dyeing, as a preservative for skins. In leather and in medicine as an astringent and emetic.