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氢氧化钾的乙醇溶液为什么会变黄
更新时间: 2020-10-14 00:00:00  

氢氧化钾的乙醇溶液变黄的原因:一是溶液配制过程中用的是95%的乙醇溶液,因为其中含有微量醛,只是溶液在放置过程中返黄。二是忧郁乙醇在放置过程中,长期贮存密封不好或者长期曝光被氧化而生成部分醛,使溶液变黄。

关键词: 氧化 乙醇 溶液 为什么

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