Dielectric properties of binary systems 8. Improved model for alcohol/non polar systems.

doi:10.1016/0167-7322(88)80020-5

Journal of Molecular Liquids

Volume 38, Issues 3–4, October 1988, Pages 225-232

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Abstract

The dielectric behavior of polar non polar liquid systems is treated as the result of associations through changes in the model proposed by Mechetti and Barón for very dilute solutions. The existence of a 1:1 interaction product (or complex) is assumed and the equilibrium constant (K) of complex formation is introduced.

As a result the range of validity of the model extends into the non-dilute region and up to the limit where complexes other than 1:1 appear.

These changes allow also to calculate the equilibrium constant (K) for the 1:1 complex from dielectric measurements in the dilute region. The values are in good agreement with those found in the literature.

References (12)

I. Nagata et al.
Thermochim. Acta
(1982)
I. Nagata et al.
Thermochim. Acta
(1984)
I. Nagata et al.
Thermochim. Acta
(1985)
An. Asoc. Quím. Argent.
(1982)
J. Phys. Chem.
(1982)
c J. Phys. Chem. In...
D.A. Ibbitson et al.
J. Chem. Soc. B
(1976)
G.C. Pimentel et al.
(1960)

There are more references available in the full text version of this article.

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¹: Member Carrera del Investigador, CONICET.

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Dielectric properties of binary systems 8. Improved model for alcohol/non polar systems.

Abstract

Thermochim. Acta

Thermochim. Acta

Thermochim. Acta

An. Asoc. Quím. Argent.

J. Phys. Chem.

J. Chem. Soc. B