大学化学 >> 2021, Vol. 36 >> Issue (8): 2009064.doi: 10.3866/PKU.DXHX202009064

化学实验 上一篇    下一篇

摩尔比法测定磺基水杨酸铜组成与稳定常数的研究

彭敏, 石建新(), 王周, 李莲云   

  • 收稿日期:2020-09-28 录用日期:2020-11-12 发布日期:2020-12-22
  • 通讯作者: 石建新 E-mail:cessjx@mail.sysu.edu.cn
  • 作者简介:石建新, Email: cessjx@mail.sysu.edu.cn
  • 基金资助:
    2017年中山大学校级质量工程项目"重点教材建设项目"

Study about the Composition and Stability Constant of Sulfosalicylic Acid-Copper(Ⅱ) Complex by Mole Ratio Method

Min Peng, Jianxin Shi(), Zhou Wang, Lianyun Li   

  • Received:2020-09-28 Accepted:2020-11-12 Published:2020-12-22
  • Contact: Jianxin Shi E-mail:cessjx@mail.sysu.edu.cn
  • Supported by:
    2017年中山大学校级质量工程项目"重点教材建设项目"

摘要:

通过实验探讨摩尔比法测定磺基水杨酸铜配合物组成与稳定常数的可行性。实验测得磺基水杨酸铜在pH为5时络合比为1,绝对稳定常数lgK= 9.63,与理论值9.52接近,表明本文设计的摩尔比法测定磺基水杨酸铜组成与稳定常数的实验方案可行。

关键词: 摩尔比法, 磺基水杨酸铜, 稳定常数

Abstract:

The feasibility of using the mole-ratio method for study of the formation and stability constant of sulfosalicylic acid-copper(Ⅱ) complex was explored. The experimental result revealed that the chelate-to-copper ratio was 1:1 at pH = 5, and its absolute stability constant was found to be lgK = 9.63, which was close to the value 9.52 from the handbook.

Key words: Mole ratio method, Sulfosalicylic acid-copper(Ⅱ) complex, Stability constant

MSC2000: 

  • G64