Nicolas Lémery

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Leonardo da Vinci (1452-1519), Italian Renaissance painter from Florence. Engraving by Cosomo Colombini (d. 1812) after a Leonardo self portrait. Ca. 1500.

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Nicolas Lémery

French physician and chemist

Learn about this topic in these articles:

arsenic

In arsenic: History
Later, Nicolas Lémery, a French physician and chemist, observed the formation of arsenic when heating a mixture of the oxide, soap, and potash. By the 18th century, arsenic was well known as a unique semimetal.
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