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为什么制备硫酸亚铁时铁要过量
更新时间: 2020-07-03 00:00:00  

制备硫酸亚铁是用硫酸和铁反应。用离子反应来表示可以看作是硫酸和铁先生成三价铁离子,三价铁再和铁反应生成二价铁离子,所以铁必须过量;而且二价铁易被氧化,过量的铁可以抑止二价铁的氧化,也可以抑制二价铁的水解。

关键词: 为什么 制备 硫酸 过量

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