
Excess molar volumes, isothermal compressibility and isobaric thermal expansivity were computed from experimental densities.ĭirectional selection causes decanalization in a group I ribozyme. Differences between both sets of data show a maximum deviation of 0.07%. Experimental methodology was checked by comparing the n-heptane and n- decane densities against multi-parameter equations proposed in the literature. Water and nitrogen were used as reference fluids to calibrate the densimeter. A measuring system based on a vibrating tube densimeter, DMA HPM from Anton Paar with data acquisition system was developed in order to obtain experimental densities. Compressed liquid densities of both systems were measured in a vibrating tube densimeter at different compositions. Abstract: Volumetric properties for the binary (ethanol + decane) and ternary (ethanol + decane + carbon dioxide) systems are reported from (313 to 363) K and pressures up to 20 MPa. â–º The presence of carbon dioxide in the (ethanol + decane) mixture causes negative excess molar volumes. â–º Excess molar volumes for (ethanol + decane) mixtures are positive. â–º Compressed liquid densities were measured in a vibrating tube densimeter from (313 to 363) K. Highlights: â–º Experimental density data are reported for (ethanol + decane) and (ethanol + decane + CO 2 ) mixtures. Elizalde-Solis, Octavio Hernández-Rosales, Irma P.


International Nuclear Information System (INIS) Derived thermodynamic properties for the (ethanol + decane) and (carbon dioxide + ethanol + decane) systems at high pressures
