(181aj) Thermodynamic Derived Properties for Carbon Dioxide - Ethanol - Decane Mixtures At High Pressures

Thermodynamic derived properties (isobaric expansivity, isothermal compressibility, thermal pressure coefficient and internal pressure) are reported in this work for the ternary system carbon dioxide (1) + ethanol (2) + decane (3) at five different compositions in the intervals of (313 – 363) K and (1 – 20) MPa. Compositions for the ternary system were prepared by varying the ethanol / decane relation and trying to keep constant the presence of carbon dioxide at about 0.2 mole fraction. These were {x2 ethanol - x3 decane - (1 - x2 - x3) carbon dioxide} x2 = 0.0657, 0.1986, 0.4087, 0.6042, 0.7109. Derived properties were obtained from an empirical correlation of 5 adjustable parameters based on density data. The experimental apparatus is based on the static – synthetic method coupled to a commercial vibrating tube densitometer from Anton Paar. Experimental densities are reported within an uncertainty of 0.2 kg·m^-3; these were obtained from vibrating periods at each temperature and pressure using water and nitrogen as reference fluids.