Experimental Inquiry on Improving Salt Bridge with Deerskin Towel
HUANG Hong-Mei1**, ZOU Yu-Jie1, ZHANG Hao-Peng2
1. College of Chemistry and Materials Science, Sichuan Normal University, Chengdu 610066, China; 2. Sichuan Shi Yi School of Tianfu New Area, Chengdu 610213, China
Abstract In the teaching practice of “copper-zinc double-liquid primary cell” in second year of high school, there were many problems with using “saturated KCl solution-agar salt bridge” in textbooks. Therefore, the deerskin towel salt bridge made of deerskin towel soaked in saturated potassium chloride solution was used in this paper to try to replace the “saturated KCl solution-agar salt bridge” for the experiment. The results showed that the deerskin towel salt bridge had the advantages of simple device, easy operation, rapid reaction, obvious phenomena, etc., and had certain value to be promoted.
HUANG Hong-Mei, ZOU Yu-Jie, ZHANG Hao-Peng. Experimental Inquiry on Improving Salt Bridge with Deerskin Towel[J]. Chinese Journal of Chemical Education, 2024, 45(13): 85-90.
