Pitzer混合参数对HCl-KCl-H_2O体系25℃时溶解度预测的影响

• 作 者: 李亚红 高世扬 韩志萍 宋彭生 夏树屏
• 机 构: 西北大学化学系!西安710069,中国科学院青海盐湖研究所!西宁,榆林高等专科学校化学系!榆林,中国科学院青海盐湖研究所!西宁,中国科学院青海盐湖研究所!西宁
• 出 处: 应用化学
• 发表日期: 2001年02期
• 关键词: 溶解度数据 Pitzer HCl-KCl-H_2O 溶解度预测 三元体系 电解质溶液 溶解平衡 离子相互作用 幅度变动 活度系数

The solubility variation of the phase system HCl-KCl-H_2O at 25 ℃ is reported when θ_HK(interactions between two species with the same charge) and Ψ_HKCl(interactions among three species) are changed within ±10%. The calculated results indicate that the interactions among the three species are much stronger than that between the two species, whereas the combination of the two kinds of interactions result in great changes of the solubility of the system. This results is important for the salting out technology of the water-salt system.

The solubility variation of the phase system HCl-KCl-H 2 O at 25 ℃ was reported when θ_HK (interactions between two species with the same charge) and Ψ_HKCl (among among three species) are within ± 10%. The calculated results indicate that the the interactions among the three species are much stronger than that between the two species, the combination of the two kinds of interactions result in great changes of the solubility of the system. This result is important for the salting out technology of the water-salt system .