Pierre Eugene Marcellin Berthelot (1827-1907) French organic chemist and politician. Berthelot worked on explosives and dyes, and proved that hydrocarbons and other organic compounds can be synthesised from inorganic materials. He was one of the founders of thermochemistry. French foreign minister 1895-1896. Photograph by Pierre Petit (1832-1909). (Paris, c1885).

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Keywords: 19th, century, chemistry, collection, france, man, politician, portrait, potin, scientist, seated, élix