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如何鉴别浓硫酸和浓盐酸3种方法

更新时间: 2020-09-16 00:00:00     

1、打开瓶盖,瓶口出现白雾的就是浓盐酸,瓶口没有出现白雾的就是浓硫酸。

2、将试剂瓶摇一摇,有"挂壁"现象的是浓硫酸,无"挂壁"现象的是浓盐酸。

3、各取少量滴在纸张、布料等上,纸张或布料炭化变黑的是浓硫酸,无明显变化的是浓盐酸。

关键词: 如何 鉴别 硫酸 盐酸 方法

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