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Organizations & People
Pure Appl. Chem. Vol. 68, No. 9, pp. 1683-1687 (1996)
Chlorine - An Introduction
(Chairman, Centre for Photomolecular Sciences, Imperial College of Science
Technology and Medecine, London SW7 2AY, UK)
Chlorine, in the form of its salts, has
been known since the earliest days of recorded history, although its
recognition as an element did not occur until the beginning of the nineteenth
century when its very high reactivity as an oxidant was found remarkable
after it was shown not to contain any oxygen. Its absorption by sunlight
made it a key substance in the early development of photochemistry.
One example of this, with both pure and applied aspects, is described
in more detail. The free radical chloric oxide played an important role
in the development of the technique of flash photolysis and twenty five
years later these researches were of essential importance in showing
how chlorine and its oxides were involved in the destruction of the
ozone layer by the chlorofluorocarbons.
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