大学化学 >> 2015, Vol. 30 >> Issue (4): 68-73.doi: 10.3866/pku.DXHX20150468

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Debye-Hückel离子互吸理论的改进

刘国杰, 黑恩成   

  1. 华东理工大学化学系 上海 200237
  • 发布日期:2015-08-14
  • 基金资助:

    华东理工大学网络教育教改项目(No.WJY2014006);教育部教育质量工程建设项目(No.YJ0136102);国家精品资源共享课建设项目(No.YJ0125206)

Modification of Debye-Hückel Theory

Liu Guojie, Hei Encheng   

  1. School of Chemistry, East China University of Science and Technology, Shanghai 200237, China
  • Published:2015-08-14

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摘要：

根据强电解质水溶液形成的热力学设想,修正了Debye-Hückel离子互吸理论,检验结果表明,它能满意地关联各种价型的强电解质水溶液的离子平均活度因子,使适用的浓度范围扩大到了6mol·kg-1。

关键词: Debye-Hü, ckel离子互吸理论, 强电解质水溶液, 离子平均活度因子

Abstract:

Based on the thermodynamic properties of ions in solution, we modified the Debye-Hückel expression. The modified expression could be well correlated with the mean activity coefficients of different strong electrolyte aqueous solutions with various ionic charges, and the applicable concentration range is extended to 6mol·kg-1.

Key words: Debye-Hückel theory, Strong electrolyte aqueous solution, Mean activity coefficients