一种改进的表面电位滴定仪在实验教学中的应用  

Application of improved surface potential titrator in experimental teaching

作　　者：朱小燕 杜鸣赫 王洪权 刘意 陈洁渝 卜庭江 严春杰 ZHU Xiaoyan;DU Minghe;WANG Hongquan;LIU Yi;CHEN Jieyu;PU Tingjiang;YAN Chunjie(Faculty of Materials Science and Chemistry,China University of Geosciences(Wu Han),Wuhan 430074,China)

机构地区：[1]中国地质大学(武汉)材料与化学学院,湖北武汉430074

出　　处：《实验技术与管理》2022年第8期109-113,共5页Experimental Technology and Management

基　　金：国家自然科学基金项目(51774259);湖北省自然科学基金项目(2020CFB385);中国地质大学(武汉)实验技术研究项目(SJ-202004);中国地质大学(武汉)教学实验室开放基金资助项目(SKJ2020069)。

摘　　要：在矿物材料实验教学中,针对表面电位滴定仪存在加温不均一、数据不稳定、换加液不方便等问题,提出双模式温控、循环供液系统、搅拌等改进方法,并设计高岭石零电点测试验证实验。实验结果表明:改进后的仪器操作更方便,其稳定性和测量精度提高,实验数据准确;教学过程中,学生实验操作过程顺畅,教学效果良好,可满足本科实验教学要求。In the experimental teaching of mineral materials, due to the problems of uneven heating, unstable data and inconvenient replacement of liquid in the surface potential titrator, the improvement methods of dual-mode temperature control, circulating liquid supply system and stirring are proposed, and the kaolinite zero point test verification experiment is designed. The results show that the improved instrument is more convenient to operate,and the stability and measurement accuracy are improved, and the experimental data are accurate. In the teaching process, the students’ experimental operation is smooth, and the teaching effect is good, which can meet the requirements of undergraduate experimental teaching.

关 键 词：表面电位 高岭石电荷密度 电位滴定仪 实验教学 

分 类 号：TQ056.1[化学工程]