大学化学2024，Vol.39Issue(5)：27-36,10.DOI:10.3866/PKU.DXHX202309107
基于柿子提取物的自制pH检测剂和酸碱变色科普实验
A DIY pH Detection Agent Using Persimmon Extract for Acid-Base Discoloration Popularization Experiment
摘要
Abstract
This experiment employs the coordination reaction between epigallocatechin gallate(EGCG)from persimmon extract and ferrous sulfate.The study investigates the responsive changes of the complex solution at different pH,aiming to achieve a portable differentiation application for common acidic and alkaline substances in daily life.The experiment utilizes readily available raw materials,ensures a safe process,and demonstrates observable phenomena,allowing the audience to appreciate the beauty of chemical transformations and fostering a strong interest in the field of chemistry.关键词
柿子/单宁/铁配合物/pH便携检测Key words
Persimmon/Tannins/Iron coordination compound/Portable pH measurement分类
社会科学引用本文复制引用
郑童育,李腾,韩晓宇,柴喻培,赵可心,刘全,季晓晖..基于柿子提取物的自制pH检测剂和酸碱变色科普实验[J].大学化学,2024,39(5):27-36,10.基金项目
陕西理工大学本科教育教学改革研究项目(XJG2331) （XJG2331）
陕西理工大学研究生教育教学改革研究项目(SLGYJG2304) （SLGYJG2304）
陕西理工大学国家级大学生创新创业训练计划项目(202310720032) （202310720032）
