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Thomas Graham, Scottish chemist

Thomas Graham, Scottish chemist

H407/0242

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Credit

SHEILA TERRY / SCIENCE PHOTO LIBRARY SHEILA TERRY / SCIENCE PHOTO LIBRARY

Caption

Thomas Graham. Portrait of the Scottish physical chemist Thomas Graham (1805-1869). Ignoring his father's wish that he should enter the church, Graham began a career in science which led to professorships in Glasgow, Scotland, and London, England. He was a founder of physical chemistry and the first president of the Chemical Society of London. He researched the mixing of gases separat- ed by a porous barrier (diffusion) or allowed to mix by passing through a small hole (effusion). He also studied phosphorus and its oxyacids, and examined the behaviour of hydrogen gas with metals of the iron group. His work on dialysis began the effective study of colloidal chemistry.

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