Intermolecular Interactions and Excess Refractive Indices of Binary Liquid Mixture from 298.15-323.15k: Correlation and Modeling

From the measured work of Jose M. Navaza, In this paper we have presented the theoretical results of refractive index computed for non-polar binary liquid mixture of Cyclohexane + 2, 2, 4- Trimethylpentane by six mixing rules such as Arago-biot (A-B),Gladstone-Dale (G-D), Newton (NW), Eyring-John (EJ), Heller(H) and Weiner(W) from 298.15-323.15K over the entire composition range and compared with experimental data to test the validity of these mixing rules , which are expressed in term of average absolute % deviation (AAPD) .Excess refractive index (nE) have also been evaluated for aforesaid liquid mixture to analyze the extent of intermolecular interaction between the binary components. Deviation in refractive index were evaluated and fitted to redlich kister polynomial equation to derive the binary coefficient and standard deviations at different temperatures. Furthermore, McAllister three and four body interaction models based on Eyring’s theory of absolute reaction rates have been applied to test the accuracy of experimental findings.