Thermoacoustic and phase equilibrium studies of cyclohexanone, cyclohexylamine and cyclohexanol in ethyl lactate at different temperatures at 95.3 kPa

Abstract

Molecularassociations in the mixtures of the liquids cyclohexanone (CHN), cyclohexylamine (CHA) and cyclohexanol (CHO)with ethyl lactate (EL) as major composition are sighted in this investigation from the investigational estimations of U, and. U, and  of the mixtures of solventsEL+CHN, El + CHA and EL + CHO are estimated at temperatures from 303.15 K to 318.15 K at an interval of 5 K at ambientpressure. From exploratory information, different thermodynamic parameters which are significant in the estimation of interactionsamong molecules in the mixture of solvents are figured. The excessparameters are computed and are fitted to a RKpolynomial and the relating standard deviations are registered. The variation of these estimations are reflectedin connection to intermolecularassociationsexisting in the solventmixtures. Excessfunctions of molar volume (V_m^E) are observed as negative while the viscosity deviations () are seen as positive in all the cases. The phase equilibrium data is obtained experimentally at 95.3 kPa pressure. The liquid phase activity coefficients are interrelated with the mole fraction using Wilson, Non Random Two-Liquid, Van Laar and Margules models. The volumetric and VLE studies showed that the interactions between EL and CHN, CHA and CHO pursue the order: EL + CHN>EL + CHA>EL + CHO.