Excess Molar Volume Of Binarymixtures From Iso-Propyl Alcohol, Tertiary- Butyl Alcohol And Toluene Liquids At 298K

Abstract

In this work, binary mixtures from Tertiary-Butyl alcohol (TBA), Toluene (TOL) and Iso-Propyl alcohol (IPA) were prepared at 298K. The mixtures physical properties which includes densities of mixtures (ρ) and pure components (ρI) and mole fractions of components (x) were equally measured at 298K. Excess molar volumes (VE) were subsequently determined for each mixtures using the Ideal Association Model of the type A + B + A2. The results from the Tables and Figure showed positive excess molar volumes for the binary mixtures of Iso-Propyl Alcohol (IPA) and Tertiary- Butyl Alcohol (TBA), and Tertiary-Butyl Alcohol (TBA) and Toluene (TOL), while negative excess molar volumes were observed at some points in the Iso-Propyl Alcohol (IPA) and Toluene (TOL) binary mixtures at 298K. Consequently, strong self association and weak dipole-induced-dipole interaction were probably evident in the Iso-Propyl Alcohol (IPA) and Tertiary-Butyl Alcohol (TBA) Binary Mixture, and Tertiary-Butyl Alcohol (TBA) and Toluene (TOL) mixture, while weak self association and strong dipole-induced-dipole interaction was characteristic of the Iso-Propyl Alcohol (IPA) and Toluene (TOL) mixture. However, the Ideal Association Model of the type A + B + A2 were observed to be adequate for interpreting the behaviours of the Tertiary-Butyl Alcohol (TBA) and Toluene (TOL) mixture, and Iso-Propyl Alcohol (IPA) and Tertiary-Butyl Alcohol (TBA) mixture. KEY WORDS: Binary Mixture, Excess Molar Volume, Mole Fraction, Non-Ideal Behaviour, Temperature Global Journal of Pure and Applied Sciences Vol.11(1) 2005: 107-111