8.分液和萃取 分液是把两种互不相溶密度也不相同的液体分离开的方法萃取是利用溶质在互不相溶的溶剂里的溶解度不同用一种溶剂把溶质从它与另一 Template




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tomski8.分液和萃取 分液是把两种互不相溶密度也不相同的液体分离开的方法萃取是利用溶质在互不相溶的溶剂里的溶解度不同用一种溶剂把溶质从它与另一 coloring