%0 Journal Article
%T Volumetric, Viscometric and Excess Properties of Binary Mixtures of 1-Iodobutane with Benzene, Toluene, o-Xylene, m-Xylene, p-Xylene, and Mesitylene at Temperatures from 303.15 to 313.15£¿K
%A Sangita Sharma
%A Khushbu Thakkar
%A Paras Patel
%A Madhuresh Makavana
%J Advances in Physical Chemistry
%D 2013
%I Hindawi Publishing Corporation
%R 10.1155/2013/932103
%X Densities and viscosities have been determined for binary mixtures of 1-iodobutane with benzene, toluene, o-xylene, m-xylene, p-xylene, and mesitylene at 303.15, 308.15, and 313.15£¿K for the entire composition range at atmospheric pressure. The excess molar volumes, , deviations in viscosity, ¦¤¦Ç, and excess Gibbs¡¯ free energy of activation flow, ¦¤ have been calculated from the experimental values. The experimental data were fitted to Redlich-Kister polynomial equation. The variations of these parameters with composition of the mixtures and temperature have been discussed in terms of molecular interactions occurring in these mixtures. Further, the viscosities of these binary mixtures were calculated theoretically from their corresponding pure component data by using empirical relations like Bingham, Arrhenius and Eyring, Kendall and Munroe, Hind, Katti and Chaudhari, Grunberg and Nissan, and Tamura and Kurata. Comparison of various interaction parameters has been expressed to explain the intermolecular interactions between iodobutane and selected hydrocarbons. 1. Introduction Densities and viscosities of solution are very important properties especially for the chemical design and for the optimization of chemical processes. The study of these properties plays an important role in many industrially interesting systems such as organic synthesis, ion extraction systems, gas adsorption solvents, and mass transfer phenomena. Furthermore, the study of excess thermodynamics and transport properties for binary mixtures gives an important information concerning the deeper understanding of the molecular liquid structure and intermolecular interactions [1]. 1-iodobutane has vast applications at industrial level because it works as an alkylating agent in organic synthesis. Aromatic hydrocarbons are also important organic solvents in organic synthesis and extraction systems. Aromatic hydrocarbons like xylenes were frequently used as octane enhancer in vehicles [2]. The excess molar volume and viscosity deviations are properties sensitive to different kinds of association in the pure components and in the mixtures. These properties have been used to investigate the molecular packing, molecular motions, and various types of intermolecular interactions and their strengths, but these properties are influenced by the size, shape, and chemical nature of the component molecules [3¨C5]. In view of this significance, it was thought worthwhile to study the binary mixtures of 1-iodobutane, benzene, toluene, o-, m-, and p-xylenes in order to understand the interactions between
%U http://www.hindawi.com/journals/apc/2013/932103/