“乙醛溶液的电解”课堂演示实验研究

针对中学化学实验教学中电解有机物的空白现状,应用Schiff试剂定性检测电解液中乙醛浓度的方法,开发了一个电解乙醛的课堂演示实验。该实验将有机化学中的氧化还原反应与电解过程相结合,以此发展学生对电解池工作原理以及有机化学反应机理的认识。通过实验探究,培育学生“科学探究与创新意识”和“科学态度与社会责任”的学科素养。

Study on Electrolysis of Acetaldehyde Solution for Classroom Demonstration

Aiming at the blank status of electrolytic organic matter in middle school chemistry experiment teaching,this paper developed a demonstration experiment of electrolytic acetaldehyde in the classroom by using Schiff reagent to qualitatively detect the concentration of acetaldehyde in electrolyte.This experiment combines the redox reaction in organic chemistry with the electrolysis process to develop students’understanding of the working principle of the electrolytic cell and the mechanism of organic chemical reaction.Through the experimental exploration,the core literacy about"scientific inquiry and innovation consciousness"and"scientific attitude and social responsibility"are developed.