Tag: aluminum

This started when a Swiss physician and alchemist know as Paracelsus advised that alum was a separate entity from sulfates, which on the time they referred to as vitriole. He proposed that, rather, that alum was a salt produced by an element. Sixty-five years later, in 1595, Andreas Libavius, a German chemist and physician, realized that copper sulfate , iron sulfate and alum could possibly be made utilizing the identical acids, however different elements. He couldn’t figure out the element from which alum came, however he gave it a name anyhow–alumina. Friedrich Hoffmann, another German chemist, proposed that the alum base was a component all its personal. Meanwhile, just six years later, a French chemist named Étienne Geoffroy Saint-Hilaire countered that with the suggestion that alum was an oxide created from a mixture of sulfuric acid and an unknown metal element.

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