ON THE MOLAR POLARIZABILITIES OF BINARY MIXTURES FROM TERTIARY BUTYL ALCOHOL ISO-PROPYL ALCOHOL AND TOLUENE AT 298K

Abstract

Three pairs of binary mixtures from pure grade liquids of Tertiary –Butyl Alcohol (TBA), lso-Propyl alcohol (IPA) and Toluene (TOL) were prepared at 298k and 1 atm. Subsequently, the densities, mole fractions and refractive indices of the mixtures and their pure components were obtained at 298k. The average molar polarizabilities (_AV) and excess molar polarizabilities (__) for the binary mixtures were obtained. The results showed linear trends for average molar polarizabilities over the entire composition range for the three binary mixtures. Positive excess molar polarizabilities dominated the composition range of the three binary mixtures, but it is however absolutely dominant in the Tertiary- Butyl Alcohol (TBA) and Toluene (TOL) mixture. The magnitude of the induced molar polarizability for the three binary mixtures at 298k are in the order of Tertiary- Butyl Alcohol (IPA) and Toluene (TOL) > Iso-Propyl Alcohol (IPA) and Tertiary –Butyl Alcohol (TBA) > Iso-Propyl Alcohol (IPA) and Toluene (TOL) mixtures. Keywords: Binary Mixture, Molar Polarizability Temperature, Molar Refractivity, Mole Fraction. [Global Jnl Engineering Res. Vol.1(2) 2002: 97-106]