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Born Feb. 26, 1728, in Saint-Lys; died Oct. 15, 1804, in Paris. French chemist, pharmacist, and technologist. Became a member of the Paris Academy of Sciences (1778).
In 1768, Baumé invented the hydrometer that bears his name. In 1770 he initiated the production of sal ammoniac. He developed methods of production for china and bleaching raw silk, among others. Baumé published several manuals on chemistry and pharmacy, including Experimental and Theoretical Chemistry (vols. 1–3, 1773). He advocated the theory of phlogiston.