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58问答库 > 怎样判断分子间脱水还是分子内脱水？

怎样判断分子间脱水还是分子内脱水？

2025-04-07 11:45:48

推荐回答（2个）

回答（1）：

举几个例子就好了
1.分子内脱水:乙醇制乙烯
乙醇是CH3CH2OH,一个分子内脱掉一分子水得到C2H4(乙烯),
这个反应需要与浓H2SO4加热到170度
2.分子间脱水:乙醇制乙醚
同样,与浓H2SO4加热到140度,乙醇会发生分子间脱水
即两个乙醇分子间失去一分子水生成乙醚(CH3CH2OCH2CH3)

回答（2）：

看反应条件，或者看反应物的量

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