Authors: Byung Heung Park
Publish Date: 2016/04/16
Volume: 33, Issue: 7, Pages: 2191-2204
Abstract
Densities of nine binary solutions made of one of three 1butyl3methylimidazolium bmim halides with water methanol or ethanol were measured at atmospheric pressure The compositions of an ionic liquid bmimCl bmimBr or bmimI were increased up to 04 as a mole fraction at a given temperature within a range of 29315 to 31815 K The measured values were correlated by a quadratic equation to obtain a temperature dependency of the respective systems Furthermore the equation was used to obtain the volume expansivity which would be used for a pressurevolumetemperature behavior of a condensed phase The apparent molar volumes were also calculated from the experimental data The remarkable distinction of the volumetric property behavior between aqueous and nonaqueous solutions was found and attributed to strong ion–solvent interactions in the aqueous systems
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