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研究了精己二胺中微量水分的卡尔费休测定方法,采用脱水溶剂中加入一定比例的酸,并用冰水混合物冷却脱水溶剂,以降低精己二胺的发烟现象,来提高测量的准确度。
The method for determining Karl Fischer’s trace moisture in refined hexanediamine was studied. A certain proportion of acid was added to the dehydrated solvent and the dehydrated solvent was cooled with an ice water mixture to reduce the smoking of the refined hexanediamine to improve the measurement accuracy degree.