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Dalziel Hammick

Dalziel Llewellyn Hammick FRS (born 8 March 1887, West Norwood, London, England, died 17 October 1966, was an English research chemist. His major work was in synthetic organic chemistry. He promulgated Hammick's rule, which predicts the order of substitution in benzene derivatives, while the Hammick reaction is used in the synthesis of larger molecules.



Hammick was educated at Oxford University and the University of Munich in Germany. After some years as a schoolmaster, in 1920 he was elected to a fellowship of Oriel College, Oxford.

His early research was on inorganic substances. He studied sulphur and its compounds and suggested structures for liquid and plastic sulphur. In 1922 he showed that the polymer polyoxymethylene results from the sublimation of trioxymethylene. It was not until the 1960s that this polymer was to be used commercially.

He also translated scientific books from French into English.

His work was honoured by election as a Fellow of the Royal Society in 1952.


  • 1906 – 1910 Magdalen College, Oxford (demy) (BA 1910)
  • 1909 – 1910 University of Munich
  • 1910 – 1918 Assistant Master at Gresham's School
  • 1918 – 1920 Assistant Master at Winchester College
  • 1920 – 1966 Fellow of Oriel College, Oxford
  • 1921 – 1958 Lecturer in natural sciences, Corpus Christi College, Oxford


  • An Introduction to Organic Chemistry by Dalziel Llewellyn Hammick (London, Bell, 1921)
  • Atoms, by Jean Perrin and Dalziel Llewellyn Hammick (London, Constable, 1916, reprinted Ox Bow Press 1990) ISBN 0-918024-78-1
  • numerous papers in the Journal of the Chemical Society and the Journal of the American Chemical Society

Honours and Other Positions

  • 1952: Fellow of the Royal Society


  • Hammick at
  • Hammick at
  • Bowen, EJ: Biographical Memoirs of Fellows of the Royal Society 1967 Volume 13, pages 107-124
  • The Biographical Dictionary of Scientists: Chemists. ed. David Abbott (Peter Bedrick Books, New York, 1983)
This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Dalziel_Hammick". A list of authors is available in Wikipedia.
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