Pitzer混合参数对CsCl—Cs_2SO_4—H_2O体系25℃时溶解度预测的影响  

Effects of Pitzer Mixing Parameters on the Solubility Prediction of CsCl-Cs_2SO_4-H_2O System at 25 ℃

作　　者：保英莲[1] 孙海霞[1] 曹红翠[1] 周莲[1] 

机构地区：[1]青海大学化工学院,青海西宁810016

出　　处：《盐业与化工》2012年第10期17-19,共3页Jounral of Salt and Chemical Industry

基　　金：2011"春晖计划"(Z2011010)

摘　　要：利用Pitzer混合参数,计算了CsCl-Cs2SO4-H2O体系25℃时的溶解度以及两离子作用参数θClSO4和三离子作用参数ΨClSO4各以±10%变动时,CsCl-Cs2SO4-H2O三元体系25℃溶解度的变化。计算的结果表明,θClSO4和ΨClSO4对CsCl、Cs2SO4的溶解度有影响。两离子混合作用不变,三离子混合作用增加或减小时,溶解度的变化最小。但当两离子与三离子混合作用同时增加或减小时,溶解度的变化最大。从定量的角度说明了θClSO4和ΨClSO4对体系性质的影响和电解质溶液的相互作用。The solubility of CsCl-Cs2SO4-H2O system at 25 ℃ by Pitzer mixing.The solubility changes of the ternary system at 25 ℃ was also got when two-ion operational parameter θClSO4 and three-ion operational parameter ΨCsClSO4 changed with ＋10% and-10%.The results indicate that θClSO4and ΨCsClSO4 affects the solubility of CsCl and Cs2SO4.The solubility will decrease when ΨCsClSO4 increases or decreases and θClSO4keeps without change.But the solubility changes mostly when ΨCsClSO4and θClSO4 increases or decreases at the same time.The mutual effects of ΨCsClSO4and θClSO4 on the system property and electrolyte solution are explained quantitatively.

关 键 词：Pitzer混合参数 体系 溶解度预测 三离子参数 

分 类 号：TS312[轻工技术与工程]