高等学校化学学报

高等学校化学学报 ›› 1986, Vol. 7 ›› Issue (12): 1112.

• 研究论文 • 上一篇    下一篇

含盐体系的静态介电常数

朱建军, 卢锦梭   

  1. 河南师范大学化学系
  • 收稿日期:1985-06-23 出版日期:1986-12-24 发布日期:1986-12-24

The Static Dielectric Constant of Salted Solutions

Zhu Jianjun, Lu Jinsuo   

  1. Chemistry Department, Henan Normal University, Xinxiang
  • Received:1985-06-23 Online:1986-12-24 Published:1986-12-24

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摘要： 应用剩余极化的概念和Mori布朗运动方程,得介电常数的计算公式。应用于H2O-LiCl、H2O-NaCl、CH3OH-LiCl,CH3OH-NaCl、CH3OH-Nal、HCONH2-NaI表明,水盐体系的计算值接近实验值,HCONH2-NaI较差。

Abstract: Applying the definition of extra polarization and Mori's Brown motion equation,we got the secular motion equation for extra polarization from the nonequi-librium standpoint.We have solved the secular Eq.with the help of the assumption of equal effective ionic electric field.It shows not only the ion's radius but also the solution structure and solvent properties are responsible for the per-mittivity decrement.Using the present result,calculations are carried out for the systems of LiCl-CH3OH,NaCl-CH3OH,NaI-CH3OH,NaCl-H2O,LiCl-H2O ,KCl-H2O,NaI-HCONH2,Comparison among the continuum theory,molecular theory and ours is made,it shows our result is better to the salted system of alchol and water

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