Guillaume François Rouelle (15 September 1703 – 3 August 1770) was a French chemist and apothecary. In 1754 he introduced the concept of a base into chemistry, as a substance which reacts with an acid to give it solid form (as a salt). From the book La ciencia y sus hombres : vidas de los sabios ilustres desde la antigüedad hasta el siglo XIX T. 3 [Science and its men: lives of the illustrious sages from antiquity to the 19th century Vol 3] By by Figuier, Louis, (1819-1894); Casabó y Pagés, Pelegrín, n. 1831 Published in Barcelona by D. Jaime Seix, editor , 1879 (Imprenta de Baseda y Giró)

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Location: Barcelona, Spain
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