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Excess Gibbs energies of mixtures of polar liquids + liquids of similar structure, but varying polarizability

Authors
Journal
Fluid Phase Equilibria
0378-3812
Publisher
Elsevier
Publication Date
Volume
49
Identifiers
DOI: 10.1016/0378-3812(89)80010-x

Abstract

Abstract Vapour pressures of binary liquid mixtures of 1-chlorobutane, 2-butanone and ethanenitrile + 2,2,4-trimethylpentane, + 2,4,4-trimethyl-1-pentene or 2,4,4-trimethyl-2-pentene were measured by the static method at 313.15 K, partially also at 293.15 K and the molar excess Gibbs energies determined. Excess volume data (by vibrating tube) at both temperatures necessary to evaluate the measurements and the isothermal compressibilities of 1-chlorobutane and of 2,4,4-trimethyl-2-pentene at 293.15 K are also presented. The results could be discussed in terms of different polarizabilities of the structurally closely related pentane/pentene-compounds on mixing with liquids of increasing polarity by means of a general van der Waals equation of state for hard convex bodies.

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