| 释义 |
‖ suber Bot. (Chem.)|ˈsjuːbə(r)|
[L. = cork, cork-oak.]
The bark or periderm of the cork-tree; cork. Also, a vegetable principle found in this.
1800Henry Epit. Chem. (1808) 293 Suber,—this name is used to denote common cork wood. 1819J. G. Children Chem. Anal. 298 Suber..is light, soft and elastic, burns with a bright flame and yields ammonia by distillation. 1826Henry Elem. Chem. II. 313 Of Suber and its Acid.
Hence subeˈramic a., denominating the acid produced by the dry distillation of ammonium suberate. subeˈramide, the white crystalline compound formed by the action of aqueous ammonia on suberate of methyl or by heating suberic acid with phosphorus trichloride. ˈsuberane, a liquid hydrocarbon (see quots.); hence subeˈranic a. subeˈranilate, a salt of suberaˈnilic acid, the acid remaining after suberanilide has been precipitated from a solution of fused suberic acid, aniline, and alcohol; so subeˈranilide.
1859Watts tr. Gmelin's Handbk. Chem. XIII. 221 *Suberamic Acid. C16NH15O6.
1898Jrnl. Chem. Soc. LXXIV. i. 125 *Suberamide melts at 216°.
1894Ibid. LXVI. i. 265 The purified suberene (or heptamethylene, ‘*suberane’) boils at 117–117·5° under 743 mm. pressure. 1911Encycl. Brit. (ed. 11) XXII. 32/2 Cyclo-heptane (suberane), C7H14, obtained by the reduction of suberyl iodide.
Ibid. 33/1 Cycloheptane carboxylic acid (*suberanic acid), C7H13CO2H.
1859Watts tr. Gmelin's Handbk. Chem. XIII. 222 *Suberanilate of Ammonium.—The acid dissolves easily in hot ammonia, and the salt is deposited in small granular crystals.
Ibid., *Suberanilic acid yields aniline when fused with potash.
1857Miller Elem. Chem., Org. iv. §2. 257 Dianilides... *Suberanilide 2 (C12H5), H2N2, C16H12O4. |