Volumetric properties of binary mixtures of Tributylamine (cas 102-82-9) with benzene derivatives and comparison with ERAS model results at temperatures from (293.15 to 333.15) K

Add time:08/12/2019    Source:sciencedirect.com

Binary mixtures of Tributylamine (cas 102-82-9) with aromatics (toluene, ethylbenzene, o-xylene, m-xylene, p-xylene and nitrobenzene) were selected in order to investigate intermolecular interactions by calculation of their excess molar volume VmE, from density measurements. Thermal expansion coefficients αp, and their excess values of αE, were obtained from the density data. The VmE values were positive for all the mixtures except for the (tributylamine + nitrobenzene) binary mixture over the entire range of composition and lower temperatures and become more positive with rising temperature. At high temperatures, sigmoidal behavior was observed for the mixture of (tributylamine + o-xylene). The mixture of (tributylamine + nitrobenzene) shows negative values for VmE and become more negative with increasing temperature. The experimental data were correlated to Redlich–Kister equation. In order to characterize the VmE values, the extended real associated solution (ERAS) model was applied at different temperatures.

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