电导率与浓度关系在处理乙酸乙酯皂化反应的实验数据中的应用  

Application of the Relationship between Conductivity and Concentration in the Treatment of Experimental Data of Ethyl Acetate Saponification

作　　者：林洁丽 陈浒 林洁玲 LIN Jie-li;CHEN Hu;LIN Jie-ling(Foshan University,School of Environment and Chemical Engineering,Foshan 528000,China)

机构地区：[1]佛山科学技术学院,环境与化学工程学院,广东佛山528000

出　　处：《化工管理》2021年第27期15-16,共2页Chemical Engineering Management

摘　　要：在用电导率法测乙酸乙酯皂化反应的反应速率常数实验中,如何界定电导率与溶液低浓度的关系尤为重要。该论文利用其线性关系和非线性关系分别处理5组平行实验数据,发现得到的反应速率常数差别较大。用线性关系推导的第1种模型得到的反应速率常数平均相对误差高达69.6%。用非线性关系推导的模型稳定性高,反应速率常数平均相对误差为36.5%,约为用常规方法处理的结果的一半。The determination of the relationship between conductivity and low concentration of solution was particularly important when the reaction rate constant of ethyl acetate saponification reaction was measured by conductivity method.This paper processed the five groups of parallel experimental data by using their linear and nonlinear relations.It was found that the obtained reaction rate constants were quite different.The first model derived by linear relation gave as high as 69.6%of average relative error of reaction rate constant.The exact model derived from the nonlinear relation gave 36.5%of the relative error for the reaction rate constant,which was about half of that from the conventional model.

关 键 词：电导率 浓度 乙酸乙酯 皂化反应 二级反应 

分 类 号：O657.11[理学—分析化学]