Estimation of Dynamic viscosities, Excess molar volumes and refractive indices of Ternary Liquid Mixtures

Abstract

At atmospheric pressure and over the whole concentration range, densities, viscosities and refractive indices of a ternary system and three constituent binary systems at T=298.15 K were measured. The observed values of excess volumes were obtained from the measured values of density. These findings were utilized to determine excess molar volumes (VE), viscosity variances (Δη), and refractive index deviations (Δn). The estimated values of VE, η, and n were fitted to polynomials of variable degrees (Redlich - Kister). The values estimated by several theoretical equations of prediction (L-L) relation, Flory model, Glinski model, (RS) model, and McAllister three and four-body interaction models were compared with the ternary results. In conclusion, these models can help us to understand the properties and interactions involving liquids with the use of VE, Δη, and Δn. We found a fair amount of agreement between theory and experiment when compared.