Thermodynamic properties of aqueous-alcoholic solutions of sodium chloride. H2O-2-C3H7OH-NaCl

被引:2
作者
Veryaeva, E. S. [1 ]
Konstantinova, N. M. [1 ]
Mamontov, M. N. [1 ]
Uspenskaya, I. A. [1 ]
机构
[1] Moscow MV Lomonosov State Univ, Fac Chem, Moscow 119991, Russia
基金
俄罗斯基础研究基金会;
关键词
MIXED-SOLVENTS; SINGLE IONS; WATER; ELECTROLYTES; COEFFICIENTS; MIXTURES; NACL; 2-PROPANOL; EQUILIBRIA; ENERGIES;
D O I
10.1134/S0036024410110105
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
The temperature-concentration dependences of the NaCl activity coefficient in aqueous solutions of isopropanol (propanol-2) at temperatures of 298.15 and 323.15 K (solution ionic force, 0.01 to 3m; alcohol content, 10-60 wt %) were determined through the electromotive force method with an ion-selective electrode. A Pitzer model was used to mathematically describe the thermodynamic properties. The integral Gibbs energy of the solution formation of the H2O-2-C3H7OH-NaCl ternary system was performed according to Darken's method. The dissociation degree of salt in the investigated solutions was estimated using the literature data on the association constant of NaCl in aqueous-isopropanol solution.
引用
收藏
页码:1877 / 1885
页数:9
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