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卡爾一費休法的介紹

返回打印发布时间：2013/10/11 点击：9872

卡尔一费休法是检测水中成分的一种测试法。具体的介绍看下面。

由于某化工反应中要求高纯氯化氫甲醇溶液中尽可能为无水溶液，因为水对化学反应产生极大的影响，水的存在会使得化学反应中出现其他的负反应，控制抓化氢甲醇溶液中的水分就显得尤为重要。监测其中的水分就成了一个很重要的问题。因为样品中含有大量的抓化氢及甲醇，抓化氢和甲醇都是易挥发的物质，因此水分的测定不能采用烘干法；若用气相色谱法测定其中的水分，氯化氫甲醇气体和微量的水蒸气会对气相色谱仪造成腐蚀，损坏精密的仪器，造成不必要的损失。

若直接用，卡尔一费休法来测定抓化氢甲醇溶液中的水分，则无法测定其中的水分。因此，尚无检测氯化氫甲醇溶液中的水分的有效分析方法，从而无法控制氯化氫甲醇溶液中水分的含量。经仔细查找原因，对卡尔一费休法进行了改进，建立了分析氯化氫甲醇溶液中水分的方法，解决了这一检测难题。用加以改进的卡尔一费休法对氯化氫甲醇溶液的水分进行侧定，结果令人满意。

我们所喝的水一定要是干净的，水中的甲醇溶液一定要经过正确的测试才可以。

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