电导法测定水溶性表面活性剂CMC实验条件的优化  

Optimization of Experimental Conditions for Determination of Critical Micelle Concentration of Soluble Surfactant by Conductivity Method

作　　者：赵婷婷[1] 王亚琴 董金龙[1] 

机构地区：[1]太原师范学院化学系,山西 晋中

出　　处：《化学工程与技术》2021年第2期76-81,共6页Hans Journal of Chemical Engineering and Technology

摘　　要：电导法测定水溶性表面活性剂的临界胶束浓度是本科化学及化工类专业物理化学实验课程中的基础性实验,针对实验过程中操作繁琐、实验数据误差较大等问题对该实验内容进行了改进;利用恒温水浴锅测定了不同温度时的临界胶束浓度,改变了溶液的配制方法等。以上改进减少了实验药品的用量,简化了实验操作,使实验测定的结果更加准确,同时使得学生对该实验的原理和方法有了更深的理解,培养了学生的实验技能,从而提高了教学效果。The determination of the critical micelle concentration of soluble surfactants by conductivity method is a basic experiment in the physical chemistry experiment course of chemistry and chemical engineering majors. The experiment contents are improved in view of the complicated operation and large error of the experimental data in the experiment process. The critical micelle concentration at different temperatures was determined by constant temperature water bath pot, and the preparation method of solution was changed. The above improvements reduce the dosage of experimental drugs, simplify the experimental operation, make the experimental results more accurate, at the same time, make the students have a deeper understanding of the principle and method of the experiment, and cultivate the students' experimental skills. Thus, the teaching effect is improved.

关 键 词：表面活性剂 临界胶束浓度 实验改进 

分 类 号：G63[文化科学—教育学]