大学化学 >> 2025, Vol. 40 >> Issue (3): 390-401.doi: 10.12461/PKU.DXHX202409134

师生笔谈 上一篇    下一篇

滴定曲线反函数通式推导

李娜1, 邵利民2   

  1. 1 北京大学化学与分子工程学院, 北京 100871;
    2 中国科学技术大学化学与材料科学学院, 合肥 230026
  • 收稿日期:2024-09-29 录用日期:2024-11-14 发布日期:2025-03-19
  • 通讯作者: 李娜 E-mail:lina@pku.edu.cn
  • 基金资助:
    2023年度安徽省质量工程项目“分析化学基础教学提升计划”(2023ylyjh0012023ylyjh001)

Deduction of the General Formula of the Inverse Function of the Titration Curve

Na Li1, Limin Shao2   

  1. 1 College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China;
    2 School of Chemistry and Materials Science, University of Science and Technology of China, Hefei 230026, China
  • Received:2024-09-29 Accepted:2024-11-14 Published:2025-03-19
  • Contact: Na Li E-mail:lina@pku.edu.cn

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摘要： 本文从底层逻辑出发，基于平衡体系中的平衡表达式与基本定量关系式推导了滴定曲线反函数的通式，并基于此对滴定曲线的重要信息(包括化学计量点和滴定突跃范围)进行了简单讨论。

关键词: 反函数, 滴定曲线, 物料平衡式, 通式, 酸碱滴定, 络合滴定, 氧化还原滴定, 沉淀滴定

Abstract: In this paper, based on the underlying logic, the general formula of the inverse function of the titration curve is derived based on the equilibrium expression and the basic quantitative relationship in the equilibrium system. The important information of the titration curve, including the stoichiometric point and the range of titration jump, is briefly discussed.

Key words: Inverse function, Titration curve, Mass-balance equation, General formula, Acid-base titration, Complexometric titration, Redox titration, Precipitation titration