| 单词 | organic alkali |
| 释义 | > as lemmasorganic alkali organic alkali n. Chemistry (originally) an alkali of organic origin, an alkaloid (now historical); (in later use) any alkaline organic compound. ΚΠ 1828 A. Ure Dict. Chem. (ed. 3) 787/1 M. Robiquet has on more than one occasion stated his doubts of the pre-existence of organic alkalis in vegetables. 1863 H. Watts Dict. Chem. (1879) 117 The earliest addition made..to the old list of alkalis was morphia..This was the first organic alkali, or alkaloid, which became known. 1913 T. A. Henry Plant Alkaloids iv. 137 Pelletier and Caventou..inspired by the then recent observations of Sertürner on the existence of ‘organic alkalis’ in nature, undertook the further investigation [of quinine]. 1989 R. Dryer & G. Lata Exper. Biochem. i. iii. 66 Chemiluminescence may also be promoted by use of tissue solubilizers, which are usually strong organic alkalis. 2008 Materials Lett. 62 478/1 Tetramethylammonium hydroxide (TMAH) is a strong organic alkali which can be used to adjust very high pH values. < as lemmas |
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