Thomas Graham was a Scottish chemist. He was born in 1805 at Glasgow and died in 1869. Educated at Glasgow and Edinburgh, in 1837 he was appointed professor of chemistry at University College, London, holding the post until 1855 when he became master of the Mint. Thomas Graham was the first president of the Chemical Society, founded in 1841. His most important work was investigations into the diffusion of gases and liquids. Research Thomas Graham