工业上制取CuSO4，不是直接用浓H2SO4与铜加热的条件下反应，而是_爱下问搜题

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问题填空题

工业上制取CuSO4，不是直接用浓H2SO4与铜加热的条件下反应，而是将铜丝浸入稀H2SO4中并不断的由容器的下部吹入细小的空气泡。试分析这种制取方法的优点是______。

答案

既防止了SO2的污染，又节省了原料H2SO4。

教材中制取CuSO4的方法是浓H2SO4与铜反应共热，但此法生成有污染的SO2气体，同时H2SO4的利用率低。若先将Cu氧化成CuO，则可避免以上两种弊病的出现。化学方程式可表示为：

2Cu+O2="===2CuO " CuO+H2SO4====CuSO4+H2O

完形填空

完形填空。

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问答题简答题

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