Zinc sulfate
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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 crystallizat
Zinc Sulfate
Vitriol
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Vitriol is the general chemical name encompassing a class of chemical compounds comprising sulfates of certain metals – originally, iron or copper. Those mineral substances were distinguished by their
Zinc sulfate
…as the heptahydrate, with the formula ZnSO4·7H2O. As early as the 16th century it was prepared on a large scale, and was historically known as "white vitriol". The main application of the heptahydrate is as a coagulant in the production of rayon. It is also a precursor to the pigment lithopone. It is also…
Woodcut print from the Berckwerck Buch (1580) by Georgius Agricola depicting mineral mining for vitriol
![Ceramic pharmacy jar for storing blue vitriol (vitriol bleu) for medical use (Museum of the Civil Hospices of Lyon [fr]; Hôtel-Dieu de Lyon)](https://upload.wikimedia.org/wikipedia/commons/thumb/3/37/Vitriol_Bleu_-_mus%C3%A9e_HCL_-_pot_pharmacie_-_St-Vincent_de_Paul.jpg/500px-Vitriol_Bleu_-_mus%C3%A9e_HCL_-_pot_pharmacie_-_St-Vincent_de_Paul.jpg)
Ceramic pharmacy jar for storing blue vitriol (vitriol bleu) for medical use (Museum of the Civil Hospices of Lyon [fr]; Hôtel-Dieu de Lyon)
Blue vitriol monocrystal
Iron sulfate heptahydrate sample