摘要
丙交酯生成过程中因为副反应必然产生一定比例的高粘度反应底物,该底物水解处理后,可以循环利用,本文采用非水滴定法测定水解酸含量、卡尔.费休法测定残存水含量。结果表明,丙交酯水解液中平均含水量为26.98%,含酸量为69.90%,水解彻底,实验精密度及准确度均达到要求。该法操作简便,结果准确,可以作为该体系的常规分析方法。
There are proportional viscous reaction substrates yielded consequentially, which could be cyclic used after being hydrolyzed. Along with different hydrolytic degrees, the content of hydrolytic acid was determined by non-aqueous titration, the content of water remained was determined by Karl · Fischer titration. The results showed that,the average water content in laetide hydrolyzate is 26.98% ,lactic acid content is 69.9% ,more over,precision and accuracy of this method meet the requests,and easy to operate, so,it would be a conventional method for the system.
出处
《应用化工》
CAS
CSCD
2007年第6期616-618,共3页
Applied Chemical Industry
关键词
丙交酯
水解
非水滴定
卡尔·费休法
lactide
hydrolyze
non-aqueous titration
Karl ·Fischer titration
