实验室制乙烯反应为ch3ch2ohch2=ch2� H2o制取过程中温度需迅速升到170 ℃但也常因温度过高而使乙醇和浓硫酸反应生成�量 Template




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tomski实验室制乙烯反应为ch3ch2ohch2=ch2� h2o制取过程中温度需迅速升到170 ℃但也常因温度过高而使乙醇和浓硫酸反应生成�量 coloring