利用离子交换树脂测定配离子的电荷数,已成为简便、准确、行之有效的实验方法。此实验的基本原理,请见《中级无机化学实验》(北京师范大学出版社,1984年版)“实验十六离子交换法测定二草酸二水合铬(Ⅲ)酸根离子上的电荷数”及王伯康、钱文浙等编《中级无机化学实验》(高等教育出版社,1984年版)“实验三十配离子电荷的测定。”上述二书中的实验,对交换出来的Cl~-离子或H~+离子的含量分析,都采用指示剂确定终 Using ion exchange resins to determine the number of ions with the ion has become a simple, accurate and effective experimental method. The basic principles of this experiment, see “Intermediate Inorganic Chemistry Experiment” (Beijing Normal University Press, 1984 edition) “sixteen ion exchange method for the determination of two oxalate acid chromium (III) ion on the charge number” and Wang Baokang, Qian Wenzhe et al., “Intermediate Inorganic Chemistry Experiment” (Higher Education Press, 1984) “Experiment thirty determination of ionic charge.” In the above two experiments, the exchange of Cl ~ - ion or H ~ + Ion content analysis, are used to determine the final indicator