Static dielectric constants (epsilon) were measured for mixtures of 12-dichloroethane (DCE, 1) + 2-methoxyethanol (ME, 2) + 1,2-dimethoxyethane (DME, 3) at 19 temperatures in the range -10 less than or equal to t/degrees C less than or equal to 80, employing 12 ternaries covering the whole composition range expressed by the mole fractions 0 < X(1), X(2), X(3) < 1. Empirical fitting equations of the type epsilon = epsilon(T), epsilon = epsilon(X(i)) and epsilon = epsilon(T,X(i)), which might be useful for correlation and interpolation procedures, were used to represent the experimental data. The excess mixing property epsilon(E) has been evaluated to investigate the presence of solvent-cosolvent adducts at each temperature. The quantity epsilon(E) has been found to be partly positive and partly negative in the ternary domain {X(1), X(2), X(3)}. As a consequence, it is possible to observe an isoline at epsilon(E) = 0 at each temperature. Such a line represents a large set of ternary mixtures having a pseudo-ideal dielectric behavior, even being formed by interacting components.
Static dielectric constants of 1,2-dichloroethane + 2-methoxyethanol + 1,2-dimethoxyethane ternary liquid mixtures from -10 to 80 °C / F., Corradini; Marchetti, Andrea; M., Tagliazucchi; Tassi, Lorenzo. - In: FLUID PHASE EQUILIBRIA. - ISSN 0378-3812. - ELETTRONICO. - 124:(1996), pp. 209-220.
Static dielectric constants of 1,2-dichloroethane + 2-methoxyethanol + 1,2-dimethoxyethane ternary liquid mixtures from -10 to 80 °C
MARCHETTI, Andrea;TASSI, Lorenzo
1996
Abstract
Static dielectric constants (epsilon) were measured for mixtures of 12-dichloroethane (DCE, 1) + 2-methoxyethanol (ME, 2) + 1,2-dimethoxyethane (DME, 3) at 19 temperatures in the range -10 less than or equal to t/degrees C less than or equal to 80, employing 12 ternaries covering the whole composition range expressed by the mole fractions 0 < X(1), X(2), X(3) < 1. Empirical fitting equations of the type epsilon = epsilon(T), epsilon = epsilon(X(i)) and epsilon = epsilon(T,X(i)), which might be useful for correlation and interpolation procedures, were used to represent the experimental data. The excess mixing property epsilon(E) has been evaluated to investigate the presence of solvent-cosolvent adducts at each temperature. The quantity epsilon(E) has been found to be partly positive and partly negative in the ternary domain {X(1), X(2), X(3)}. As a consequence, it is possible to observe an isoline at epsilon(E) = 0 at each temperature. Such a line represents a large set of ternary mixtures having a pseudo-ideal dielectric behavior, even being formed by interacting components.Pubblicazioni consigliate
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