单词 | paramic |
释义 | † paramicadj. Chemistry. Obsolete. paramic acid n. an insoluble acid obtained by acidifying a solution of mellitimide. ΚΠ 1848 Chem. Gaz. 15 Aug. 325 This substance, which might be called paramidic acid, may be formed by 3 atoms of paramide combining with the elements of 2 atoms of water.] 1865 H. Watts Dict. Chem. III. 874 Paramic acid.—This name is given by Schwarz to a white crystalline precipitate obtained by dropping an ammoniacal solution of paramide into hydrochloric acid. 1892 H. F. Morley & M. M. P. Muir Watts' Dict. Chem. (rev. ed.) III. 201/1 An ammoniacal solution of paramide dropped into HClAq gives a white crystalline pp. called ‘paramic acid’ C12H5N3O7 (?). This entry has been updated (OED Third Edition, June 2005; most recently modified version published online June 2018). < adj.1865 |
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。