| 单词 | chlorine monoxide |
| 释义 | > as lemmaschlorine monoxide chlorine monoxide n. (a) a chlorine oxide (dichlorine monoxide), Cl2O, an unstable yellow or orangish gas, used in chemical synthesis as a chlorinating and oxidizing agent (also called hypochlorous anhydride) (now rare); (b) a free radical, ClO·, formed esp. in the upper atmosphere by the action of ultraviolet light on chlorofluorocarbons (CFCs) and contributing to ozone depletion. ΚΠ 1868 H. B. Jones & H. Watts Fownes's Man. Elem. Chem. (ed. 10) 196 (note) Chlorine monoxide or Hypochlorous oxide..Cl2O. 1920 G. S. Newth Text-bk. Inorg. Chem. (new ed.) 374 The acid produced by the solution in water of chlorine monoxide has a pale straw-yellow colour, and a very characteristic chlorous smell. 1982 Causes & Effects Stratospheric Ozone Depletion (National Res. Council) i. 17 Stratospheric concentrations of chlorine monoxide (ClO) and nitrogen dioxide (NO2) may be increased as a result of emissions of CFCs and nitrous oxide (N2O) from human activities. 1999 H. Fielding in Age of Molecule (Royal Soc. Chem.) 101/1 It turns out that, because of its stability, chlorine monoxide is of immense importance in photochemical reactions where chlorine is incorporated into a molecule in the presence of oxygen. 2010 G. Rayner-Canham & T. Overton Descriptive Inorg. Chem. (ed. 5) xvii. 469 The first of these is chlorine monoxide, which is environmentally important even though it exists only in the upper atmosphere. < as lemmas |
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