Thermodynamics Research Center / ThermoML | Thermochimica Acta

ABSTRACT

Densities and viscosities of binary mixtures of methyl isobutyl ketone (MIK) with polar solvents namely, 2-propanol, 2-butanol and 2-pentanol, were measured at 7 temperatures (293.15 323.15 K) over the entire range of composition. Using the experimental data, excess molar volumes VE m, isobaric thermal expansivity ap, partial molar volumes Vm;i and viscosity deviations Dh, have been calculated due to their importance in the study of specific molecular interactions. The observed negative and positive values of deviation/excess parameters were explained on the basis of the intermolecular interactions occur in these mixtures. The Perturbed Chain Statistical Association Fluid Theory (PC-SAFT) has been used to correlate the volumetric behavior of the mixtures.