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石灰水为什么时间长失效

更新时间: 2020-09-17 00:00:00     

澄清石灰水即为氢氧化钙(俗名熟石灰)的澄清水溶液,呈碱性,一般用来检测二氧化碳。因为其有效成分是氢氧化钙,长期放置可与空气中的二氧化碳反应生成碳酸钙和水,导致其失效。

关键词: 石灰水 为什么 时间 失效

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