摘要
本文介绍了在ｐＨ＝１．７～５．０，温度为７０～１００℃条件下，测定尿素的水解速度，并探索其规律。在ｐＨ值和温度恒定条件下，其水解过程为一级反应。温度对尿素的水解速度影响较大，每增加１０℃其反应速度增加１．４～１．５倍，随着ｐＨ值的增加水解速度逐渐降低，当ｐＨ为３．０～５．０时，水解速度则平缓降低。
This paper introduces the method of determining the rate of hydrolysis of urea at pH 1.7～5.0,temperature 70～100℃and studies some rules of it.At a constant pH and temperature, thehydrolysis of urea is a first -order reaction,Temperature’s effect on it is relatively great,the rate ofhydrolysis increases by 1.4～1.5 time with a temperature increment of 10℃,It decreases progres-sively with increase in pH and gently when at pH 3.0-5.0.
出处
《华东地质学院学报》
1994年第1期94-97,共4页
Journal of East China Geological Institute
关键词
尿素
水解速度
温度
PH值
urea
rate of hydrolysis
temperature
pH
