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Experimental Study of the Excess Molar Volumes of Binary and Ternary Mixtures Containing Water + (1,2-Ethanediol,or 1,2-Propanediol,or 1,3-Propanediol,or 1,2-Butanediol) + (1-<Emphasis Type="Italic">n</Emphasis>-Butyl-3-methylimidazolium Bromide) at 298.15 K and Atmospheric Pressure
Authors:M Rodrigues  A Z Francesconi
Institution:1.Departamento de Engenharia de Sistemas Químicos, Faculdade de Engenharia Química,Universidade Estadual de Campinas,Campinas,Brazil
Abstract:Densities of binary and ternary mixtures containing water + (1,2-ethanediol or 1,2-propanediol or 1,3-propanediol or 1,2-butanediol) + (1-n-butyl-3-methylimidazolium bromide at 0.01 mole fraction) at 298.15 K and atmospheric pressure have been determined as a function of composition using an Anton Paar densimeter (Model DMA 55). Excess molar volumes (VmEV_{\mathrm{m}}^{\mathrm{E}}) were calculated. The values are negative for all mixtures over the whole composition range.
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