Topic summary
Zinc sulfate
Zinc sulfate is an inorganic compound with the formula ZnSO4. It forms hydrates ZnSO4·nH2O, where n can range from 0 to 7. All are colorless solids. The most common form includes water of crystallization as the heptahydrate, with the formulaZnSO4·7H2O. As early as the 16th century it was prepared on a large scale, and was historically known as "white vitriol".