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

ABSTRACT

Densities, viscosities, and refractive indexes of the ternary system diisopropyl ether + ethanol + methylcyclohexane at T = 298.15 K and the binary systems diisopropyl ether + ethanol, diisopropyl ether + methylcyclohexane, and ethanol + methylcyclohexane were measured at T = (288.15, 298.15, and 308.15) K and atmospheric pressure over the whole composition range. Densities were determined using a vibrating-tube densimeter. Viscosities were measured with an automatic Ubbelohde capillary viscometer. Refractive indexes were measured using a digital Abbe-type refractometer. Excess molar volumes VE, deviations in the viscosity , and deviations in the refractive index nD for the mixtures were derived from experimental data. The binary data of VE, , and nD were correlated as function of the mole fraction by using the Redlich-Kister equation. For the ternary data, several polynomial equations have been tested to minimize the set of parameters for adequate correlation.