Zinc Sulphate Heptahydrate is an inorganic compound which finds application for oral rehydration therapy in medicine and also possesses astringent property. It has molecular formula ZnSO4.7H2O with a molar mass of 287.541 g/mol. This compound appears as a white colored powder with odorless nature and has a melting point of 100 degrees Celsius. It is soluble in water & alcohols and also serves as an electrolyte for electroplating of zinc. Zinc Sulphate Heptahydrate can be added to animal feeds, fertilizers, and agricultural sprays as supplements. It finds the most important application as a coagulant in rayon production.