Volumetric properties of binary systems of benzylamin with methanol , ethanol and ۱-propanol at different temperatures

The excess properties of liquid mixture are important to understand and interpret the nature of interactions between the molecules of the mixtures. In recent years, there has been considerable upsurge in the theoretical and experimental investigation of the excess thermodynamic properties of binary liquid mixture.[۱] Up to now, the binary mixtures containing alcohols and aromatics have been studied with considerable interest because these mixtures exhibit varying molecular interactions and are important from a practical point of view. Alcohols and aromatics are widely used in variety of industrial and consumer applications, such as perfumes, cosmetics, paint, varnish, drugs, fuel, explosives, fats, waxes, resin, plastics, rubber, detergents, DDT, Etc. [۲] We report densities,  , excess molar volumes,VmE , and partial excess molar volumes,ViE , their values at infinite dilution, Vi E,۰ , thermal expansion coefficient, Į, and its excess value, ĮE, and isothermal coefficient of excess molar enthalpy ( ா / P)T,x for binary liquid mixtures of benzylamin with methanol, ethanol and ۱-propanol at temperatures (۲۹۳.۱۵, ۳۰۳.۱۵, ۳۱۳.۱۵, ۳۲۳.۱۵, and ۳۳۳.۱۵) K and ambient pressure (۸۱.۵ kPa). These excess quantities were correlated with a temperature dependent Redlich–Kister equation.

کلیدواژه ها:

Binary mixture ، Excess molar properties ، Density ، Benzylamin ، Alkanol