Experiment Inquiry on Electrolysis of Potassium Dichromate Solution
CHEN Xiao-Yun1,3, SHI Zhi-Bin2,3, WU Xin-Jian3
1. Huaqiao Middle School of Changle, Changle 350200, China;
2. Fujian Changle No.1 High School, Changle 50200, China;
3. Institute of Chemical Education, Fujian Institute of Education, Fuzhou 350025, China
Abstract Under the conditions of different voltage, pH, concentration, electrode materials etc, this paper did experiment inquiry on electrolysis of potassium dichromate solution, explained the different phenomena, and made the conclusions such as heavy chromium acid radical ion in cathode discharge, with graphite electrode could also make electrolytic treatment of waste water containing heavy chromium acid radical ion, etc.
CHEN Xiao-Yun, SHI Zhi-Bin, WU Xin-Jian. Experiment Inquiry on Electrolysis of Potassium Dichromate Solution[J]. Chinese Journal of Chemical Education, 2016, 37(17): 71-73.
