All Columns articles – Page 83
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Opinion
The utility of oxidation states
Oxidation state is a convenient fiction, but the concept is far from meaningless, writes Philip Ball
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Opinion'Perkin's' triangle
The vacuum distillation apparatus invented by Leonard Temple Thorne, but with Perkin's name on it
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Opinion
Letters: December 2008
There is a great deal of interest in the dissolution of cellulose in ionic liquids at the moment (Chemistry World, November 2008, p24). It is a commonly held view that this is new science, and the use of imidazolium based ionic liquids for this purpose is certainly new. ...
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Opinion
Following instructions
Anyone who has any laboratory teaching experience can tell you how difficult it can be to get students to follow instructions
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Opinion
Casimir concord
Philip Ball uncovers a pleasing symmetry surrounding the mysterious Casimir force
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Opinion
Letters: November 2008
From Alan Dronsfield Norman Nicholson asks about the introduction of uranium as the catalyst for the Haber process (Chemistry World, September 2008, p42). In 1908, Haber and Le Rossignol realised that it would be possible to synthesise ammonia in an 8 per cent yield at about 600°C and 200 atmospheres ...