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Fe的化学性质介绍

更新时间: 2020-09-21 00:00:00     

铁有多种同素异形体。铁是比较活泼的金属,在金属活动顺序表里排在氢的前面。常温时,铁在干燥的空气里不易与氧、硫、氯等非金属单质起反应,在高温时,则剧烈反应。铁在氧气中燃烧,生成四氧化三铁,炽热的铁和水蒸气起反应也生成四氧化三铁。铁易溶于稀的无机酸和浓盐酸中,生成二价铁盐,并放出氢气。在常温下遇浓硫酸或浓硝酸时,表面生成一层氧化物保护膜,使铁钝化,故可用铁制品盛装浓硫酸或浓硝酸。

关键词: fe 化学性质 介绍

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