| 释义 |
cumene Chem.|ˈkjuːmiːn|
[f. L. cumīnum cumin + -ene.]
A hydrocarbon, C9H12, found in Roman cumin oil: it is a colourless strongly refracting oil, allied to Benzene. So cumic |ˈkjuːmɪk| a., of or derived from cumin, as in cumic acid C10H12O2, cumic aldehyde, etc. ˈcumidine, a base homologous with toluidine, formed by the action of ammonium sulphide on nitrocumene. cuˈminic a., of or derived from cumene; = cumic. cumole = cumene. ˈcumyl, the acid organic radical, C10H11O, of Cumic acid, homologous with Benzoyl; hence ˈcumylamide, ˈcumylene, cuˈmylic, ˈcumylide, etc.
1863–72Watts Dict. Chem. II. 173 Cumene. Cumol. Hydride of Cumenyl. Ibid. 174 Cumene is insoluble in water. 1873― Fownes' Chem. 818 Cumic Acid is produced by oxidation of cuminol or cumic aldehyde, one of the constituents of oil of cumin. 1850Daubeny Atom. Th. viii. (ed. 2) 243 A substance called cumidine, lately discovered by Mr. Nicholson in the oil of caraways. 1847Turner Elem. Chem. 1077 The addition of an acid causes the cuminic acid to separate. 1863–72Watts Dict. Chem. II. 178 Cuminic acid..is produced by the oxidation of the oxygenated oil (hydride of cumyl) contained in essence of cumin. Ibid. II. 182 Cumyl in the free state, or Cumylide of Cumyl..is an oily liquid, heavier than water. 1873― Fownes' Chem. 791 Cymyl Alcohol is also called Cumylic Alcohol. |