单词 | benzoic |
释义 | benzoicadj. Chemistry. Of or derived from benzoin; as benzoic acid n. C7H6O2 (= C6H5.CO.OH), a monobasic acid of the Aromatic series, existing in large quantity in gum benzoin, from which it was at first prepared. ΘΚΠ the world > matter > chemistry > organic chemistry > organic acids > [noun] > phenolic acids, named benzoic acid1791 oil of spiraea1842 toluic acid1857 itatartaric acid1872 aspirin1899 phenylarsonic acid1905 tar acid1909 pteroic acid1946 1791 W. Hamilton tr. C.-L. Berthollet Elements Art of Dyeing I. i. i. v. 85 Benzoic acid, or salt of benzoin. 1819 J. G. Children Ess. Chem. Anal. 274 Benzoic acid, formed from gum benzoin, is solid, white, and slightly ductile..it crystallizes in long white opaque prisms, with a satiny lustre. 1830 J. Lindley Introd. Nat. Syst. Bot. 303 The fragrance of some grasses..depends, according to Vögel, upon the presence of Benzoic acid. This entry has not yet been fully updated (first published 1887; most recently modified version published online December 2021). < adj.1791 |
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