摘要
针对高锰酸钾与草酸的褪色反应,利用RGB解析手段建立了定量测定体系中的高锰酸钾浓度的方法,并通过此法探究了浓度、温度、催化剂对该反应的影响。据此得到的标准比色卡和标准曲线,可为其他教师提供定量研究工具,帮助其在课堂中快速进行实验探究。
In view of the fading reaction between potassium permanganate and oxalic acid,a method for quantitative determination of potassium permanganate concentration in the system was established by RGB analytical means,and the effects of concentration,temperature and catalyst on the reaction were investigated by this method.The standard colorimetric card and standard curve obtained by this method could provide other teachers with quantitative research tools and help them to carry out experimental research quickly in class.
作者
何万林
黄萍
娄珀瑜
冉鸣
HE Wan-Lin;HUANG Ping;LOU Po-Yu;RAN Ming(College of Chemistry and Materials Scicnce,Sichuan Normal University,Chengdu 510058,China;Teachers'College,Xi'an University,Xi'an 710065,China)
出处
《化学教育（中英文）》
CAS
北大核心
2020年第13期91-95,共5页
Chinese Journal of Chemical Education
基金
全国教育科学“十三五”规划课题“智慧学习环境下中学翻转课堂教学的行动研究”(课题批准号:DHA180367)。
关键词
化学反应速率
高锰酸钾
RGB解析
化学实验教学
chemical reaction rate
potassium permanganate
digitalizing RGB
chemistry experiment teaching
