Bot. (Chem.) [L. = cork, cork-oak.] The bark or periderm of the cork-tree; cork. Also, a vegetable principle found in this.
1800. Henry, Epit. Chem. (1808), 293. Suber,—this name is used to denote common cork wood.
1819. J. G. Children, Chem. Anal., 298. Suber … is light, soft and elastic, burns with a bright flame and yields ammonia by distillation.
1826. Henry, Elem. Chem., II. 313. Or Suber and its Acid.
Hence Suberamic a., denominating the acid produced by the dry distillation of ammonium suberate. Suberamide, the white crystalline compound formed by the action of aqueous ammonia on suberate of methyl or by heating suberic acid with phosphorus trichloride. Suberane, a liquid hydrocarbon (see quots.); hence Suberanic a. Suberanilate, a salt of Suberanilic acid, the acid remaining after suberanilide has been precipitated from a solution of fused suberic acid, aniline, and alcohol; so Suberanilide.
1859. Watts, trans. Gmelin’s Handbk. Chem., XIII. 221. *Suberamic Acid. C16NH15O6.
1898. Jrnl. Chem. Soc., LXXIV. I. 125. *Suberamide melts at 216°. Ibid. (1894), LXVI. I. 265. The purified suberene (or heptamethylene, *‘suberane’) boils at 117–117·5° under 743 mm. pressure.
1911. Encycl. 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.
1859. Watts, trans. Gmelin’s Handbk. Chem., XIII. 222. Suberanilate of Ammonia.—The acid dissolves easily in hot ammonia, and the salt is deposited in small granular crystals. Ibid., *Suberanilic acid yields abiline when fused with potash.
1857. Miller, Elem. Chem., Org., iv. § 2. 257. Dianilides … *Suberanilide 2 (C12H5), H2N2, C16H12O4.
