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

ABSTRACT

Densities and surface tensions for binary systems of (propyl acetate + o-xylene, + m-xylene, + p-xylene, + ethylbenzene) were measured under normal atmospheric pressure over the entire mole fraction range from (298.15 to 308.15) K. The excess molar volumes VE and surface tension deviations ao for the above systems were calculated and fitted to the Redlich-Kister polynomial equation. The V E for the systems of (propyl acetate + m-xylene, + ethylbenzene) are nearly zero, but for the systems of (propyl acetate + o-xylene, + p-xylene) are negative. The ao values are negative for all of the four systems. The V E of the four systems hardly change with increasing temperature, but their absolute values of ao decrease with increasing temperature.