单词 | ricinelaidic |
释义 | ricinelaidicadj. Chemistry. ricinelaidic acid n. a crystalline fatty acid, prepared from and isomeric with ricinoleic acid; cf. palmic acid n. at palmic adj.Systematic name: 12-hydroxy-trans-9-octadecenoic acid; C18H34O3. ΘΚΠ society > occupation and work > materials > derived or manufactured material > extracted or refined oil > [adjective] > specific plant-derived oils palmic acid1838 ricinelaidic acid1856 benic1863 olive oil1895 1856 W. Gregory Handbk. Org. Chem. (ed. 4) 303 By contact with hyponitrous acid, ricinolic acid is transformed into a solid acid isomeric with it, ricinelaidic acid. 1927 T. P. Hilditch Industr. Chem. Fats & Waxes 21 Ricinoleic acid..yields a solid trans-isomeride ricinelaidic acid, m.p. 54°, on treatment with oxides of nitrogen. 1976 Gastroenterology 70 371 Oleic and ricinoleic acids or their trans isomers, elaidic and ricinelaidic acids, were administered intraduodenally and evaluated for their effects on digestive motor activity. Derivatives riciˈnelaidate n. [after French ricinélaïdate (1854 or earlier)] a salt or ester of ricinelaidic acid. ΚΠ 1864 F. H. Storer First Outl. Dict. Solubilities Chem. Substances 532/1 Only the alkaline ricinelaidates are soluble in water. 1948 A. W. Ralston Fatty Acids vi. 423 The oxy acids obtained from methyl ricinoleate and methyl ricinelaidate. 1993 Acta Chemica Scandinavica 47 307 1,2-Cyclic sulfates have been prepared from O-protected ricinoleate and ricinelaidate esters. riciˈnelaidin n. [after German Ricinelaidin ( J. J. Berzelius Lehrbuch der Chem. (1848) V. 433)] now rare a solid fatty substance obtained by the reaction of castor oil with acid; cf. palmin n. ΚΠ 1856 W. Gregory Handbk. Org. Chem. (ed. 4) 308 Ricinelaidine is a solid fat, isomeric with the preceding [sc. ricinoleine], and formed from it by the action of hyponitrous acid. 1942 Industr. & Engin. Chem. (Industr. ed.) 34 907/2 Stanley..showed that liquid castor oil (largely ricinolein) was transformed in part to a white solid (ricinelaidin) when it was heated with 0.01 per cent selenium for several hours at 250° C. This entry has been updated (OED Third Edition, June 2010; most recently modified version published online March 2022). < adj.1856 |
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