| 单词 | paraffinic acid |
| 释义 | > as lemmasparaffinic acid paraffinic acid n. (a) now rare, a nitrogen-containing acid obtained by heating paraffin with a mixture of nitric and sulphuric acids; (b) any of various carboxylic acids derived from paraffins. ΚΠ 1873Paraffinic acid [see main sense]. 1906 H. F. Morley & M. M. P. Muir Watts' Dict. Chem. III. 802/1 Champion..has shown that nitrosulphuric acid slowly transforms it [sc. paraffin] at 90° into a liquid oil of the composition C13H26NO5 (called paraffinic acid)... Fuming nitric acid, according to Pouchet, also acts upon paraffin at 110°, forming a true paraffinic acid C24H48O2..together with other fatty acids. 1936 S. A. Waksman Humus vi. 137 Paraffinic acid, C24H48O2, was isolated..from the cold alcoholic extract. 1985 Analyt. Chem. 57 2207/1 Early work concentrated on identification of individual low molecular weight paraffinic acids for purposes of commercial scale isolation and purification. < as lemmas |
| 随便看 |
英语词典包含1132095条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。