Thermodynamics Research Center / ThermoML | Journal of Chemical and Engineering Data

ABSTRACT

ABSTRACT In order to study the type, nature and amount of interactions in binary systems including 1-hexyl-3-methylimidazolium nitrate ([Hmim][NO3]) ionic liquid and a homolog series of 1-alkanols (1-hexanol up to 1-decanol), some thermophysical properties via density and viscosity measuring were calculated at temperatures (293.15 K to 323.15 K). Also, to study the behavior of systems with temperature, values of thermal expansion coefficient, excess thermal expansion coefficient, E isothermal coefficient of excess molar enthalpy, H E m / P T ,x and partial molar volume, Vi for five binary mixtures at various temperatures were calculated. Findings demonstrate that strong interactions between the mixture components occur and intermolecular forces become weaker with an increase in the length of alcoholic chain and temperature. For theoretical study of mentioned mixtures, perturbed-chain statistical associating fluid theory (PC-SAFT) was implemented. Density and partial molar volume of mixtures were correlated and predicted by this theory, and the results show that outcomes are fairly consistent with the experimental data.