2023, Vol. 4, Issue 1, Part A

Densities and speed of sound were measured for the ternary liquid mixtures formed by 1-Hexanol, Cyclohexane and n-Heptane at 298.15K and atmospheric pressure over the whole concentration range. Flory model was applied to study the mixing properties and interactions in these liquids. Deviations in the speed of sound and excess molar volume were evaluated and fitted to the Redlich-Kister polynomial equation to derive the binary coefficients and standard errors. An attempt has also been made to study the molecular interactions involved in the liquid mixture from the observed data. Furthermore, excess molar volume and isentropic compressibility for these ternary mixture were computed and correlated with the observed data. Conclusively, it was found that Flory model (non- associated) provides good result when compared with the observed properties.