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The semi-ideal solution theory for mixed ionic solutions at solid-liquid-vapor equilibrium
Hu, YF; Fan, SS; Liang, DQ
2006-03-30
发表期刊JOURNAL OF PHYSICAL CHEMISTRY A
卷号110期号:12页码:4276-4284
摘要The semi-ideal solution theory has been presented to describe the changes in thermodynamic properties accompanying the process of mixing the nonideal electrolyte solutions MiXi-(NY)(sat)-H2O (i = 1 and 2) at constant activities of NY and H2O, including concentration, chemical potential, activities of all MiXi, Gibbs free energy, enthalpy, entropy, thermal properties, and volumetric properties. The theory states that, under the conditions of equal activities of NY and H2O, the average hydration numbers characterizing the ionsolvent interactions have the same values in the mixture as in the subsystems and the process of mixing these nonideal electrolyte solutions is as simple as that of mixing the ideal solutions if the contributions from the ion-ion interactions to the solvent activity are assumed to be the same in the mixture as in its subsystems, which has been justified by the calculations of the Pitzer equation. Therefore, a series of novel linear equations are established for the thermodynamic properties accompanying the process of mixing these nonideal solutions as well as mixing the ideal solutions MiXi-(NY)(sat)-H2O (i = 1 and 2) of equal mole fractions of NY and H,O. From these equations, the widely applied empirical Zdanovskii's rule is derived theoretically, and the important constant in the McKay-Perring equation under isopiestic equilibrium is determined theoretically, which has been substantiated by comparisons with the experimental results for 18 mixtures reported in the literature. Isopiestic measurements have been made for the systems BaCl2-LaCl3-H2O, NaCl-BaCl2-LaCl3- H2O, and NaCl-LaCl3-BaCl2 center dot 2H(2)O((sat))-H2O at 298.15 K. The results are used to test the novel linear concentration relations, and the agreement is excellent. The novel predictive equation for the activity coefficient of MiXi in MiXi -M2X2-(NY)(sat)-H2O has been compared with the calculations of the Pitzer equation, and the agreement is good.
文章类型Article
WOS标题词Science & Technology ; Physical Sciences
DOI10.1021/jp0542672
研究领域[WOS]Chemistry ; Physics
关键词[WOS]SENSITIVE GLASS ELECTRODES ; ORDER ELECTROSTATIC TERMS ; ACTIVITY-COEFFICIENTS ; SODIUM CHLORIDE ; ISOPIESTIC MEASUREMENTS ; AQUEOUS-SOLUTIONS ; PRESSURE MEASUREMENTS ; POTASSIUM CHLORIDE ; PITZER EQUATIONS ; TERNARY SYSTEM
收录类别SCI
语种英语
WOS类目Chemistry, Physical ; Physics, Atomic, Molecular & Chemical
WOS记录号WOS:000236407000018
引用统计
被引频次:32[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.giec.ac.cn/handle/344007/10260
专题中国科学院广州能源研究所
作者单位1.China Univ Petr, State Key Lab Heavy Oil Proc, Beijing 102200, Peoples R China
2.China Univ Petr, High Pressure Fluid Phase Behav & Property Res La, Beijing 102200, Peoples R China
3.Chinese Acad Sci, Lab Gas Hydrates & High Pressure Fluids, Guangzhou Inst Energy Convers, Guangzhou 510070, Peoples R China
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GB/T 7714
Hu, YF,Fan, SS,Liang, DQ. The semi-ideal solution theory for mixed ionic solutions at solid-liquid-vapor equilibrium[J]. JOURNAL OF PHYSICAL CHEMISTRY A,2006,110(12):4276-4284.
APA Hu, YF,Fan, SS,&Liang, DQ.(2006).The semi-ideal solution theory for mixed ionic solutions at solid-liquid-vapor equilibrium.JOURNAL OF PHYSICAL CHEMISTRY A,110(12),4276-4284.
MLA Hu, YF,et al."The semi-ideal solution theory for mixed ionic solutions at solid-liquid-vapor equilibrium".JOURNAL OF PHYSICAL CHEMISTRY A 110.12(2006):4276-4284.
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