CALCULATING ACTIVITY COEFFICIENTS OF ELECTROLYTE AQUEOUS SOLUTION WITH PERTURBATION THEORY-BASED EQUATION OF STATE

LI Chunxi; SONG Hongyan; LI Yigui; LU Jiufang

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CALCULATING ACTIVITY COEFFICIENTS OF ELECTROLYTE AQUEOUS SOLUTION WITH PERTURBATION THEORY-BASED EQUATION OF STATE

更新时间：2025-12-10

- CALCULATING ACTIVITY COEFFICIENTS OF ELECTROLYTE AQUEOUS SOLUTION WITH PERTURBATION THEORY-BASED EQUATION OF STATE
- CIESC Journal Issue 4, (2001)
- 作者机构：
  
  1. 北京化工大学化学工程学院
  2. 北京化工大学应用化学系
  3. 清华大学化学工程系
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Online First：25 April 2001，
  
  Published：25 April 2001
- 稿件说明：
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LI Chunxi, SONG Hongyan, LI Yigui, et al. CALCULATING ACTIVITY COEFFICIENTS OF ELECTROLYTE AQUEOUS SOLUTION WITH PERTURBATION THEORY-BASED EQUATION OF STATE[J]. CIESC Journal, 2001, (4).
DOI：

LI Chunxi, SONG Hongyan, LI Yigui, et al. CALCULATING ACTIVITY COEFFICIENTS OF ELECTROLYTE AQUEOUS SOLUTION WITH PERTURBATION THEORY-BASED EQUATION OF STATE[J]. CIESC Journal, 2001, (4). DOI：

摘要

Abstract

An equation of state for electrolyte aqueous solution is developed by treating the ion-ion electrostatic and ion-solvent molecule interactions with primitive MSA and perturbation theory

respectively. The effect of the dielectric constant on the ionic chemical potential and the calculation accuracy of ionic mean activity coefficients for 2∶1 and 1∶1 type halide aqueous solution are discussed.By taking ionic Pauling diameter as ionic hard sphere diameter for anions and treating the cation hard sphere diameter as ionic strength dependent

the equation can be used to calculate ionic activity coefficients in the moderate concentration range with good accuracy.

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