高等学校化学学报

高等学校化学学报 ›› 1988, Vol. 9 ›› Issue (9): 960.

• 论文 • 上一篇    下一篇

不足量配位剂存在时铜(Ⅱ)-乙二胺体系的极谱行为及其稳定常数的测定

余华强1, 周本省2   

  1. 1. 重庆化工总公司;
    2. 南京化工学院
  • 收稿日期:1987-02-08 出版日期:1988-09-24 发布日期:1988-09-24
  • 通讯作者: 余华强

The Polarographic Behavior of Cu(Ⅱ)-Ethylene-Diamine System and Determination of Stability Constants in Presence of Deficient Ligand

Yu Huaqiang1, Zhou Bensheng2   

  1. 1. Chongqing General Chemical Industrial Company;
    2. Nanjing Institute of Chemical Technology
  • Received:1987-02-08 Online:1988-09-24 Published:1988-09-24

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摘要： 本文继前文[1]的工作,探讨在不足量配位剂存在时配合物的极谱行为以及同时测定各级配合物稳定常数的可能性。

关键词: 配合物, 极谱, 稳定常数

Abstract: The polarographic curve of Cu(Ⅱ)-ethylenediamine (En)system is divided into two or three waves when CEn/CCu<2. The 1st wave corresponds to Cu2+ +2e+Hg→Cu(Hg); the 2nd, 2CuEn2++2e+Hg→Cu(Hg)+CuEn22+ ; the 3rd,CuEn2++2e+Hg→Cu(Hg)+En and CuEn22+2e+Hg→Cu(Hg)+2En. The possibility of determining both of the stability constants of CuEn2+ and CuEn22+ , β1 and β2, polarographically in presence of deficient ligand is discussed.

Key words: Complex, Polarography, Stability constant

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