Study of Molecular interactions in binary mixture of isobutanol with methyl acetate , ethyl acetate and normal propylacetate at different temperatures

Abstract

The properties associated with liquid mixtures; like density and viscosity,etc…..find several extensive applications , in chemical engineering ,design . These properties are important from practical and theoretical point of view to understand liquid theory and provide informations about molecular interactions. In this paper, we study the densities and viscosities for binary mixtures of isobutanol with methylacetae , ethylacetate, and n-propylacetate over the whole range of mixture composition at 298.15 , 303.15 and 308.15 K .Excess molar volumes vE were calculated from precise density measurements at different temperatures. The viscosity deviation ηE where calculated from experimental viscosity values at different temperatures . The observed values of VE ,and η E are discussed in term of molecular interactions in these binary mixture.The experimental results were fitted to the Redlich-Kister polynomial equation to evaluate the adjustable parameters and standard deviation for the ideal case.