单词 | oxaluric |
释义 | oxaluricadj. Chemistry. oxaluric acid n. a crystalline acid, NH2·CO·NH·CO·COOH, which decomposes on heating with water into oxalic acid and urea. ΘΚΠ the world > physical sensation > taste and flavour > sourness or acidity > [noun] > acid substance acidulant1826 oxaluric acid1838 acidulent1925 the world > matter > chemistry > organic chemistry > organic acids > [noun] > monobasic acids, named butyric acid1826 oxaluric acid1838 oxamic acid1855 thebolactic acid1874 chondrosine1886 hydroxyl acid1886 butanoic acid1933 1838 R. D. Thomson Brit. Ann. 381 Oxaluric acid is obtained in a state of purity when the warm concentrated solution of the ammonia salt is mixed with muriatic or sulphuric acids. 1866 Proc. Royal Soc. 15 259 The watery solution of the substance gives with acids a white crystalline precipitate of oxaluric acid. 1922 J. J. Sudborough Bernthsen's Text-bk. Org. Chem. (new ed.) xiii. 297 The salts, e.g. C3HKN2O3, C3Ag2N2O3, are unstable, being converted by water into salts of oxaluric acid, NH2·CO·NH·CO·CO2H. 1999 Proc. National Acad. Sci. U.S.A. 96 11733/2 The aglycon of IIc′ (and hence that of IIc) was identified as oxaluric acid. This entry has been updated (OED Third Edition, March 2005; most recently modified version published online March 2022). < adj.1838 |
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