| 释义 |
萃取cuìqǔ在混合物中加入某种溶剂,利用混合物的各种成分在该溶剂中溶解度不同而将它们分离。如在含有硝酸铀酰的水溶液中加入乙醚,硝酸铀酰就从水中转入乙醚中而杂质仍留在水中。{extract; exhaust; dissolve a mixture in a solvent so as to separate its ingredients through their varying degrees of solubility. For example, add diethyl ether in a solution of uranyl nitrate, and uranyl nitrate will dissolve into diethyl ether, while foreign substances remain in the water.} |