大学化学2024，Vol.39Issue(4)：94-99,6.DOI:10.3866/PKU.DXHX202310031
希托夫法测定离子迁移数的影响因素探究
Exploration of Factors Influencing the Determination of Ion Migration Number by Hittorf Method
摘要
Abstract
As one of the important concepts in the electrochemical part in physical chemistry,the determination of ion migration number is involved in the physical chemistry experiment course in various universities.Literature research and our past teaching practices have shown that the ion migration number measured using the Hittorf method differs significantly from the literature values.In order to reduce the measurement errors and investigate the influencing factors of the test results,this experiment made improvements in three aspects:controlling the amount of solution,the sequence of solution/electricity disconnection,and the calculation of the quantity of electricity.After minimizing the errors caused by experimental operations and concentration measurement,the factors that truly influence the measurement results of ion migration number were analyzed.The experimental results indicated that when using current multiplied by time as the data source for the quantity of electricity and calculating the ion migration number using the cathodic solution,the obtained results were closer to the reference value.关键词
离子迁移数/希托夫法/影响因素/分光光度法Key words
Ion migration number/Hittorf method/Influencing factors/Spectrophotometry分类
社会科学引用本文复制引用
才东奇,田福平,赵泽瑞,张艳娟,戴岳,黄斐斐,王瑜..希托夫法测定离子迁移数的影响因素探究[J].大学化学,2024,39(4):94-99,6.基金项目
国家质量工程项目(ZL2022034) （ZL2022034）
大连理工大学教育教学改革一般项目(YB2022026) （YB2022026）
大连理工大学大学生创新实验项目(20231014140433) （20231014140433）
