摘要
本文研究了过氧乙酸（简称ＰＡＡ）体系平衡移动的某些规律．在２５℃时，测得了该体系的平衡常数Ｋ＝３．２６；当用水稀释时，其变化基本上受平衡常数Ｋ控制；如往体系中加人乙酸乙酯，其变化除受平衡常数Ｋ控制外，还受其它因素的制约．加人草酸、ＥＤＴＡ和８一羟基喹啉，对增强体系的稳定性有一定作用，但效果不佳，而唯有加人一种复合添加剂，效果特别显著，在室温下进光放置半年。
This paper focused on some laws of change of chemical equilibrium in peracetic acid(PAA) system.The equilibrium constant(K)of PAA system was 3. 26 at 25℃,its chemical change was basically controlled by the equilibrium constant K whem the system was diluted by water,If ethyl acetate was added in the system,it helped to improve the irritating odour of PAA,but it has harmful effect on stability of PAA,its chemical change was con-trolled by not olyn the equilibrium constant K,but also some other factors.The effect to im-prove the stability of PAA system by adding oxalic acid,EDTA,8-hydroxyquinoline was not very good,but the result of a kind of complex stable agent made by ourselves was remarkable,PAA concentration basically had not any change over half year under the condition of room temperature and avoiding light.
出处
《湘潭大学自然科学学报》
CAS
CSCD
1996年第1期53-57,共5页
Natural Science Journal of Xiangtan University
基金
湖南省教委科研基金
关键词
过氧乙酸
稳定性
化学平衡
peracetic acid,stabitity, chemical equilibrium
