Portrait of Sir Edward Frankland

Portrait of Sir Edward Frankland

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Credit: SCIENCE PHOTO LIBRARY

Caption: Portrait of Sir Edward Frankland (1825-99), English chemist. Frankland was self-taught in his early years, later completing his PhD at Marburg, Germany, under the tutorship of Liebig and Bunsen. Frankland was the first chemist to make organo- metallic compunds, organic molecules containing true metals such as zinc and copper. From this, Frankland developed the concept of valence, a measure of an atom's capacity for combining with other atoms within a molecule. In later life, Frankland devoted himself to the study of river pollution, a study of increasing importance in industrialised Britain. He was knighted for his services to science in 1897.

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Keywords: chemical, chemist, edward, frankland, pioneer, portraits, surname f, valence

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