单词 | nitron |
释义 | nitronn. Chemistry. A yellow crystalline triazole derivative, (C6H5)3C2HN4, which is used in gravimetric analysis as a precipitant for nitrate, perchlorate, and some other ions. ΘΚΠ the world > matter > chemistry > organic chemistry > organic compounds > [noun] > heterocyclic compounds > other heterocyclic compounds alloxan1839 piperidine1854 valerin1866 acridine1870 piperidia1871 kairoline1883 quinoxaline1884 pyrimidine1885 pyrazolone1887 quinazoline1887 pyrazine1888 acridone1892 phthalazine1893 pyridazine1894 nitron1906 pyrrolizidine1939 the world > matter > chemistry > organic chemistry > organic compounds > [adjective] > heterocyclic compounds > containing nitrogen melamine1835 tetrapyrrolic1944 nitron1971 1906 Jrnl. Chem. Soc. 90 i. 118 As a test for nitrates nitron is even more delicate than was stated previously. 1939 A. I. Vogel Text-bk. Quantitative Inorg. Anal. i. 165 The following acids form slightly soluble salts with nitron..perchloric, thiocyanic,..and nitrous acids. 1971 Mikrochim. Acta 478 Small amounts of gold can be extracted into dichloroethane as nitron tetrachloroaurate. 1980 Analytica Chimica Acta 113 389 Increasing nitron concentration, after the minimum excess necessary for color development, results in slowly increasing absorbance values for a fixed amount of molybdenum. This entry has been updated (OED Third Edition, December 2003; most recently modified version published online March 2022). < n.1906 |
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