| 单词 | vegetable alkali |
| 释义 | > as lemmasvegetable alkali vegetable alkali n. Chemistry (now historical) (a) an alkali of plant origin; spec. potash; cf. animal alkali n. at animal n. Compounds 2; (b) = vegetable alkaloid n. ΘΚΠ the world > matter > chemistry > organic chemistry > organic bases > [noun] > obtained from plants vegetable alkali1727 sinapine1838 verdate1843 sinamine1848 sinapoline1848 opianine1852 fumarin1864 guanidine1864 betaine1879 1727 P. Shaw & E. Chambers tr. H. Boerhaave New Method Chem. lxii. 176 To one part of good strong quick-lime, set in a glass vessel, add three parts of fix'd vegetable alkali. 1796 R. Kirwan Elements Mineral. (ed. 2) II. 5 Of the fixed [alkalis] there are two species, the one generally afforded by the incineration of inland vegetables, and thence called the Vegetable Alkali. 1828 J. Murray Syst. Materia Medica & Pharmacy (ed. 5) I. i. i. 71 The principal vegetable alkalis are, Morphine, Quinine, Cinchonine, Digitaline, Emetine, Strychnine, Brucine, Picrotoxine, Veratrine, and Atropine, &c. 1910 F. J. S. Gorgas Questions & Answers Curriculum Dental Student 242 Q. What is an Alkaloid? A. A vegetable alkali; the active principle of drugs. 1936 Isis 25 379 The genus comprises: vegetable alkali (species 1), or potash; fossil alkali (species 2), or soda; volatile alkali (species 3), or ammonium carbonate. 2007 Trans. Amer. Philos. Soc. 96 67 Until the latter part of the eighteenth century, potash (potassium carbonate) or ‘vegetable alkali’, was much the more important of the two ‘natural’ fixed alkalis. < as lemmas |
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