| 单词 |
morpholine |
| 释义 |
morpholine Chem.|ˈmɔːfəliːn|
[ad. G. morpholin (L. Knorr 1889, in Ber. d. Deut. Chem. Ges. XXII. 2083), f. morphin morphine n. with insertion of -ol -ol.]
A cyclic amine, CH2CH2NHCH2CH2O, which is a hygroscopic oil used as a solvent for resins and dyestuffs and whose fatty-acid salts are emulsifying soaps used in floor polishes.
1889Jrnl. Chem. Soc. LVI. 1218 Morpholine (tetrahydroparoxazine) may be regarded as the ‘inner anhydride’ of dihydroxyethylamine. 1935Industr. & Engin. Chem. Aug. 871/1 Of the derivatives of morpholine, one of the most extensively investigated in the medical field has been morpholine ethanol. 1955Sci. Amer. Aug. 76/3 Dilute solutions of morpholine neither attracted nor repelled salmon but were detectable by them in extremely low concentrations. 1972Materials & Technol. IV. xv. 516 Diethanolamine has also appreciable value as the source of the cyclic ether, morpholine, an important solvent and intermediate in the manufacture of medicinals. |
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单词 morpholecithal 释义 morpholecithal Biol.|mflsl|[f. mod.L. morpholecith-us, f. Gr. -ή......