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Title: Thermodynamic and transport properties of ionized solutes in molten state continuously miscible in organic solvents: A class of systems with interesting features
Authors: Seelan, Sindhu S
Kumar, Anil
Issue Date: Feb-1997
Publisher: NISCAIR-CSIR, India
Abstract: There exists a class of systems, in which a salt in its molten state exhibits continuous miscibility in a solvent. This situation is different from preparing a solution of salt in its solid state in a solvent, which restricts the solubility of the salt and forms a biphasic system. In the case of continuously miscible systems, a single phase is observed, as the salt is in its molten phase, dissolved in a liquid. Organic salts, in general, have low melting points and thus, can offer easier experimental conditions compared to the inorganic salts. The properties of such systems display some interesting features, such as anomalous viscosity behaviour, ion-pairing and predominant role of short-range interaction forces in determining the behaviour of these systems. Thermodynamic, surface, volumetric and transport behaviour of such systems are described with a view to exposing their peculiar characteristics. An application of Scaled Particle Theory for estimating the surface tension and compressibility of these systems is explored with a reasonable degree of success. It is hoped that the analysis of such systems as described herein, will throw light on the connectivity likely to be present between molten and ordinary liquid phases.
Page(s): 121-127
ISSN: 0975-0975(Online); 0376-4710(Print)
Appears in Collections:IJC-A Vol.36A(02) [February 1997]

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