大学化学 >> 2021, Vol. 36 >> Issue (6): 2101038.doi: 10.3866/PKU.DXHX202101038

师生笔谈 上一篇    下一篇

组成确定缓冲溶液中缓冲能力最强的分析

王同为()   

  • 收稿日期:2021-01-21 录用日期:2021-02-02 发布日期:2021-03-11
  • 通讯作者: 王同为 E-mail:wtwei@126.com
  • 作者简介:王同为, Email: wtwei@126.com

Analysis of Composition to Determine the Strongest Buffer Capacity in the Buffer Solution

Tongwei Wang()   

  • Received:2021-01-21 Accepted:2021-02-02 Published:2021-03-11
  • Contact: Tongwei Wang E-mail:wtwei@126.com

摘要:

查阅多种《无机化学》教材及相关参考文献,发现当缓冲溶液pH=pKa?时,对组成确定的缓冲溶液中缓冲能力最强的解释不够简洁。为此,在高等教育出版社出版的大连理工大学无机化学教研室编《无机化学》书中缓冲能力描述的基础上,借助分布曲线斜率详细解释了当缓冲溶液的pH尽可能接近pKa?时,组成确定的缓冲溶液中缓冲能力最强。

关键词: 无机化学, 缓冲溶液, 缓冲能力

Abstract:

In a variety of the inorganic chemistry teaching materials and related references that the composition to give the strongest buffer capacity at pH=pKa? is not described concisely. We proposed amendment description for buffer capacity in the book written by teaching and research office of Inorganic Chemistry at Dalian University of Technology. The description is based on the distribution curve slope when buffer solution pH as close as possible to pKa?.

Key words: Inorganic chemistry, Buffer solution, Buffer capacity

MSC2000: 

  • G64