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

ABSTRACT

Density, speed of sound and refractive index measurements were conducted for the systems of pentan-2-one + propan-2-ol/butan-2-ol in the temperature range of (298.15-338.15) K, and at atmospheric pressure (0.101 MPa). The excess molar volume, excess speed of sound, excess isentropic compressibility, excess thermal expansion and excess refractive index were calculated from the measured data. A positive excess molar volume was observed for the temperature range measured here for the pentan-2-one + propan-2-ol and pentan-2-one + butan-2-ol systems with excess molar volume increasing with temperature. These behaviors, along with other calculated excess properties, were correlated by the Redlich-Kister polynomial. 1. Introduction Oxygenated hydrocarbon mixtures such as ketones and alcohols are products of the FischerTropsch process1 and must be separated, transported and stored in order to further process to improve the value of these components. Molecular interactions are common in mixtures of oxygenated compounds, as hydrogen bonding, association and polar-polar interactions are likely