Phlogiston theory
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The phlogiston theory, a superseded scientific theory, postulated the existence of a fire-like element dubbed phlogiston contained within combustible bodies and released during combustion. The name co
The alchemist and physician J. J. Becher proposed the phlogiston theory.
Georg Ernst Stahl
Antoine Lavoisier
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Antoine-Laurent de Lavoisier, also Antoine Lavoisier after the French Revolution, was a French nobleman and chemist who was central to the 18th-century chemical revolution and who had a large influenc
Phlogiston theory
…as oxidation. The theory was challenged by the concomitant mass increase and was abandoned before the end of the 18th century following experiments by Antoine Lavoisier in the 1770s and by other scientists. Phlogiston theory led to experiments that ultimately resulted in the identification (c. 1771), and naming (1777…
Detail from Portrait of Antoine-Laurent Lavoisier and his Wife by Jacques-Louis David
The Collège des Quatre-Nations in Paris
Lavoisier conducting an experiment on respiration in the 1770s
Portrait of Lavoisier explaining to his wife the result of his experiments on air by Ernest Board