Thermodynamic Modeling of Multicomponent Rare Earth Nitrates Aqueous Systems

被引：2

作者：

Dzuban, A., V ^{[1
]}

Galstyan, A. A. ^{[2
]}

Kovalenko, N. A. ^{[1
]}

Uspenskaya, I. A. ^{[1
]}

机构：

[1] Moscow MV Lomonosov State Univ, Dept Chem, Moscow 119991, Russia

[2] Moscow MV Lomonosov State Univ, Dept Mat Sci, Moscow 119991, Russia

来源：

RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY A | 2021年 / 95卷 / 12期

关键词：

thermodynamic modeling; electrolyte solutions; RE nitrates; electrolyte generalized local composition model (eGLCM); ACTIVITY-COEFFICIENTS; ISOPIESTIC DETERMINATION; ELECTROLYTE-SOLUTIONS; QUATERNARY SYSTEMS; PHASE-DIAGRAMS; 298.15; K; WATER; 25-DEGREES-C; SOLUBILITY; MIXTURES;

D O I：

10.1134/S0036024421120074

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Solubility constants of rare earth (RE) nitrates crystalline hydrates are determined in a wide temperature range (-30 to 120 degrees C), salts solubilities and phase diagrams of water-RE nitrate systems are calculated. For multicomponent (n > 5) solutions of RE nitrates the assessment of solution properties as well as phase diagrams are shown to be feasible within experimental uncertainty. In case of mixtures of RE nitrates with similar hydrodynamic radii of ions, the parameters of RE1-RE2 interparticle interaction can be ignored without losing accuracy of thermodynamic modeling.

引用

页码：2394 / 2404

页数：11

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