| 释义 |
butyr-
a formative of the names of chemical compounds belonging to or derived from the butyric series, and of some minerals. (Cf. butyro-.)
butyraˈcetic acid, an acid having the composition of a combination of butyric and acetic acid, C2H4O2.C4H8O2, also called pseudo-acetic acid; its salts are butyracetates. ˈbutyral, butyraldehyde, two isomeric compounds, C4H8O, aldehydes of the butyric series. ˈbutyraˌmide, the amide of the butyric series, C4H7O.NH2, crystallizing in snow-white nacreous tables. ˈbutyrate, a salt of butyric acid. butyˈrellite, Min., Dana's name for the natural fatty substance, bog-butter. ˈbutyrin, an oily liquid analogous to the acetins, obtained by the direct action of butyric acid on glycerin. ˈbutyrite a. Chem., a compound formed from butyric acid and mannite (Watts); b. Min., another name for Butyrellite. ˈbutyrone, the ketone of the butyric series, also called dipropyl ketone CO.(C3H7)2. ˈbutyryl, C4H7O, the radical of butyric acid.
1826Henry Chem. II. 446 This oil [butter], according to Chevreul, is resolvable into two; the one..he calls butirine, because it contains butyric acid or its elements. 1839–47Todd Cycl. Anat. III. 359/1 Butter may be regarded as composed of..stearine, elain, and butyrine. 1873Fownes Chem. 547 Several of the paraffins are produced by the dry..distillation of butyrates. 1853Pharmaceut. Jrnl. XIII. 72 The Chloride of Butyryle is..liquid. 1869–71Watts Dict. Chem. (1879) VI. 380 Butyryl..is an aromatic oil, slightly soluble or insoluble in water. |