THE INFLUENCE OF THE SOLVENT ON THE THERMODYNAMICS OF ION ASSOCIATION
DOI:
https://doi.org/10.18372/2306-1472.48.63Abstract
Abstract. Some approaches which allow to divide thermodynamic functions of the ion associationprocess in two components have been developed. The first component belongs to the process, the second oneis caused by the temperature dependence of the dielectric permittivity of the solvent. The theory is confirmedby numerous examples of the ion association process of different electrolytes in the binary mixed solvents.Keywords: covalent part of the constant of ionic association, electrostatic part of the constant of ionicassociation, enthalpy of the chemical equilibria in solution, enthropy of the chemical equilibria in solution,ionic association, ionic equilibrias, the equilibrium constant.References
Измайлов, Н.А. Электрохимия растворов. –
Москва: Химия, 1976. – 488 c.
[Izmailov, N.A. 1976. Electrochemistry of
solutions. Moscow. Chemistry. 488 p.] (in Russian).
Ebeling, W.; Rose, J. 1981. Conductance
theory of concentrated electrolytes in an MSA-type
approximation. Journal Solution Chemistry. Vol. 10,
N 9: 599–609.
Bartel, J. 1968. Conductance of electrolyte
solutions. Angewandte Chemie. Vol. 7, N 4:
–277.
Фиалков, Ю.Я. Растворители как
инструмент регуляции химических процессов. –
Ленинград: Химия, 1990. – 240 с.
[Fialkov, Yu.Ya. 1990. Solvents as an instrument
for the regulation of chemical processes. Leningrad.
Chemistry. 240 p.] (in Russian).
Фиалков, Ю.Я.; Чумак. В.Л. Электро-
литическая диссоциация серной кислоты в
двойных смешанных растворителях, которые
содержат диметилсульфоксид // Известия вузов
СССР. Химия и химическая технология. –
– Т. 19, № 2. – С. 262–266.
[Fialkov Yu.Ya.; Chumak, V.L. 1976. Electrolytic
dissociation of the sulphyric acid in the binary
mixed solvents, which contain dimethylsulphoxyd.
News of higher education establishments in USSR.
Chemistry and Chemical technology. Vol. 19, N 2:
–266.] (in Russian).
Фиалков, Ю.Я. Чумак, В.Л. Электро-
литическая диссоциация триоктилметиламмо-
нийметилсульфата в неводных растворителях //
Журнал физической химии. – 1975. – Т. 19,
№ 9. – С. 2412–2413.
[Fialkov, Yu.Ya.; Chumak, V. L. 1975.
Electrolytic dissociation of trioctilmethylammoniummethylsulphat
in no aqueous solvents. Journal of
the Physical Chemistry. Vol. 19, N 9: 2412–2413.]
(in Russian).
Фиалков, Ю.Я.; Чумак, В.Л.; Булейшвили,
В.Л. Влияние растворителя на диссоциацию
кислот в двойных смешанных растворителях //
Украинский химический журнал. – 1983. – Т. 49,
№ 6. – С. 599–602.
[Fialkov, Yu.Ya.; Chumak, V.L.;
Buleishvili, V.L. 1983. The influence of the solvent
on the dissociation of the acids in the binary mixed
solvents. Ukrainian Chemical Journal. Vol. 49, N 6:
–602.] (in Russian).
Bartel, J.; Neuedler, R.; Feuerlein, F.;
Strasser, F.; Ibert, L. 1983. Conductance of
electrolytes in ethanol solutions from -45 to 250C.
Journal of Solution Chemistry. Vol. 12, N 7:
–471.
Chemical technologies
© Vitalii L. Chumak, Mariia R. Maksymiuk, Tetyana V. Neshta, Uliya S. Kitchenko, 2011
Bartel, J.; Ibert, L.; Rossmaier, J. [and others]
Conductance of 1,1-electrolytes in acetonitrile
solutions from -40 to 35 0C. Journal of Solution
Chemistry. Vol. 19, N 4: 321–337.
Franchini, G.; Marchetti, A.; Tassi, L.;
Tosi, G. 1989. An approach to the problem of the
dependence of the dissociation constant of weak
electrolytes on the temperature and on the solvent
composition in the ethane-1,2 – diol – 2
methoxyethanol solvent system. Journal of Chemical
Society. Faraday Transactions 1. Vol. 85, N 7:
–1707.
Franchini, G.; Marchetti, A.; Tassi, L.;
Tosi, G. 1990. Ionization and dissociation of weak
electrolytes. An initial approach to Ki and Kd
evaluation. Analytical Chemistry. Vol. 62, N 10:
–1010.
Фиалков. Ю.Ю.; Чумак, В.Л. Распре-
деление термодинамических характеристик
равновесных процессов на составляющие //
Украинский химический журнал. – 1984. –
№ 50. – С. 1023–1027.
[Fialkov, Yu.Yu.; Chumak V.L. 1984. The
distribution of thermodynamic descriptions of the
equilibrium processes on constituents. Ukrainian
Chemical Journal. N 50: 1023–1027.] (in Russian).