摘要
利用Pitzer混合参数,计算了NaCl-RbCl-H2O体系25℃时的溶解度以及两离子作用参数(θ)NaRb和三离子作用参数(ψ)NaRbCl各以±10%变动时,NaCl-RbCl-H2O三元体系25℃溶解度的变化.计算的结果表明,θNaRb和ψNaRbCl对NaCl、RbCl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θNaRb和ψNaRbCl对体系性质的影响和电解质溶液的相互作用.
The paper calculates the solubility predicition results of NaCl-RbCl-H2O system at 25℃ by Pitzer mixing parameters antl solubility variations of the system when （θ）NaRb and （ψ）NaRbcl are changed by ±10% and -10%. The calculated results indicated that0NaRb（interactions of two ions with the same charge） and （ψ）NaRbcl（interactions of three ions ） have effect on the solubility of NaCl and RbCI. The solubility changes to the least when the interaction between two ions maintain the same, and the interaction among of other three ion-mixing increases or decreases. But the solubility will show the changes to the most when the two ions and three ions mixing increases or decreases at the same time. It quantitatively explains the influence of （θ）NaRb and （ψ）NaRbcl on the system and the electrolyte solution.
出处
《西南民族大学学报（自然科学版）》
CAS
2010年第4期615-618,共4页
Journal of Southwest Minzu University(Natural Science Edition)
基金
青海大学中青年科研基金(2008-QG-07)
