| 单词 | nitrogen trioxide |
| 释义 | > as lemmasnitrogen trioxide nitrogen trioxide n. (a) the anhydride of nitrous acid, N2O3, which is a blue liquid (made greenish by dissolved nitrogen dioxide) which decomposes above 3.5°C (also called dinitrogen trioxide); (b) an unstable gaseous oxide of nitrogen, NO3, identified chiefly by its absorption spectrum. ΚΠ 1868 H. B. Jones & H. Watts Fownes's Man. Elem. Chem. (ed. 10) 161 Nitrogen trioxide, or nitrous oxide... A mobile blue liquid, which emits orange-red vapors. 1936 Jrnl. Chem. Soc. 1412 When ozonized oxygen is passed over nitric anhydride, a gas with a blue tint is produced, which probably contains nitrogen trioxide, NO3. 1938 R. Hum Chem. for Engin. Students xv. 362 Nitrogen trioxide [N2O3]..is obtained as a blue liquid when a mixture of nitric oxide and nitrogen peroxide is passed through a U-tube immersed in a freezing mixture at −30°C. 1966 Proc. Royal Soc. A. 295 82 It appears that under these conditions, nitrogen trioxide, if formed, reacts almost entirely with nitric oxide rather than with sulphur dioxide. nitrogen trioxide A compound of three atoms of oxygen with an element or radical; e.g. sulphur trioxide, SO3; nitrogen trioxide, N2O3. ΘΚΠ the world > matter > chemistry > elements and compounds > metals > specific elements > oxygen > [noun] > compounds > oxides > by proportion of oxygen tritoxide1806 oxidule1815 quadroxide1825 sesquioxide1831 pentoxide1851 tetroxide1866 trioxide1868 1868 H. B. Jones & H. Watts Fownes's Man. Elem. Chem. (ed. 10) 134 A series of oxides containing quantities of oxygen in the proportion of the numbers 1, 2, 3, united with a constant quantity of another element, are distinguished as monoxide, dioxide, and trioxide respectively. 1911 H. E. Roscoe & C. Schorlemmer Treat. Chem. (ed. 4) I. 723 Boron Trioxide, B2O3,..is obtained when boron burns in the air, or in oxygen. < as lemmas |
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