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Michel Eugene Chevreul, French chemist, 1891. Chevreul (1786-1889) worked with animal fats, discovering margaric acid which led to the development of margarine
Marcellin Berthelot, French organic chemist and politician, 1903. Pierre-Eugene Marcellin Berthelot (1827-1907) worked on explosives and dyes
August Wilhelm von Hofmann, 19th century German organic chemist, (1900). Through his work on coal-tar derivatives, Hofmann (1818-1892)
A laboratory worker holds a separating funnel of oil, Dunkirk refinery, France, 1950s
Pierre Eugene Marcellin Berthelot, French organic chemist and politician, c1885. Artist: Pierre PetitPierre Eugene Marcellin Berthelot French organic chemist and politician, c1885. Berthelot (1827-1907) worked on explosives and dyes
Jean Baptiste Andre Dumas, French organic chemist, 1873. Dumas (1800-1884) did important work on organic analysis and synthesis, and the determination of atomic weights
Friedrich August Kekule von Stradonitz, German organic chemist, c1885. In 1865, Kekule (1829-1896) published his theory of the structure of the benzene ring as a ring of six carbon atoms attached by
August Wilhelm Hofmann, German organic chemist, 1854-1860. Through his work on coal-tar derivatives, Hofmann (1818-1892) in 1858 obtained aniline dye magenta or fuschine
Emil Fischer, German organic chemist, 1904. Photographed with scientific instruments. In 1874 he discovered the first hydrazine base, phenylhydrazine
