Acta Chimica Slovaca (ACS) publishes papers on fundamental and applied aspects of chemistry, biochemistry, chemical technology, chemical engineering and process control, biotechnology and food technology. Welcome are also topics which include chemical aspects of materials, physical chemistry and chemical physics, analytical chemistry, macromolecular chemistry and biomedical engineering.

Binary mixtures containing imidazolium ionic liquids: properties measurement

Pavol Steltenpohl *, Elena Graczová

Department of Chemical and Environmental Engineering, Faculty of Chemical and Food Technology, Slovak University of Technology in Bratislava, Radlinského 9, 812 37 Bratislava, Slovak Republic

E-mail: * pavol.steltenpohl@stuba.sk

Abstract: Densities and transport properties (dynamic viscosity) of pure imidazolium ionic liquids 1-butyl-3-methylimidazolium acetate and 1-butyl-3-methylimidazolium dicyanamide and their binary mixtures with water and ethanol were measured within the temperature range of 293.15—333.15 K. Obtained experimental data were used to calculate excess molar volume and viscosity deviation. For the chosen binary mixtures, variations of excess molar volume, partial molar volumes of mixture components and of the viscosity deviation with the binary mixture composition were correlated using the Redlich–Kister equation. In addition, variation of viscosity with the binary mixture composition and temperature was fitted using the Jouyban–Acree model.

Keywords: Imidazolium ionic liquids, density, dynamic viscosity, excess molar volume, viscosity deviation, Redlich-Kister equation, Jouyban-Acree equation

Acta Chimica Slovaca, Vol. 15, No. 1, 2022, pp. 18—28, DOI: 10.2478/acs-2022-0003