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从碘水中提取碘单质有哪些方法
更新时间: 2020-07-13 00:00:00  

碘作为非极性单质分子,在水中溶解度小,浓度低,不易提取,在有机溶剂中溶解度大,易于浓缩、提取,所以必然要用有机溶剂将其萃取浓缩、分液。

萃取浓缩后获得的高浓度碘溶液要变为碘单质,想到蒸馏的方法,但考虑到碘沸点低、极易升华的特点,所以宜采用低温蒸馏来去除有机溶剂。

关键词: 水中 提取 单质 哪些 方法

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