Viscosities and excess molar volumes of binary liquid mixtures of 1,4-dichlorobutane and some hydrocarbon solvents at 308.15 K, 313.15 K, and 318.15 K

ABSTRACT

Viscosities (η) and densities (ρ) of binary liquid mixtures of 1,4-dichlorobutane with cyclohexane, benzene, methylbenzene, 1,2-dimethylbenzene, 1,4-dimethylbenzene, and 1,3,5-trimethylbenzene are measured over the whole concentration range at 308.15 K, 313.15 K, and 318.15 K. Excess molar volumes $\left(V^E\right)$ from density measurements and deviation in viscosities ($\mathrm{\Delta }\eta$) from viscosity measurements have been estimated for all binary mixtures. Viscosity values increase with increase in mole fractions ($x_1$) of 1,4-dichlorobutane in the mixtures. $\mathrm{\Delta }\eta$ values are negative and $V^E$ values are positive at the three experimental temperatures for all the binary mixtures except the mixture with 1,4-dichlorobutane + methylbenzene where $V^E$ is negative. The Redlich–Kister polynomial is fitted to $\mathrm{\Delta }\eta$ and $V^E$ values, and standard deviations, $\sigma \left(\mathrm{\Delta }\eta \right)$and $\sigma \left(V^E\right)$, have been determined. The correlating performances of several equations for viscosities show that the Hind–McLaughlin–Ubbelohde equation gives minimum value of standard deviation for interaction parameter at the three experimental temperatures.

KEYWORDS:

• Viscosity
• binary mixtures
• molecular interactions
• 4-dichlorobutane
• hydrocarbons

Acknowledgements

The authors are thankful to the Head, Department of Chemistry, D.D.U. Gorakhpur University, Gorakhpur, for providing laboratory facilities and to Prof. Sudha Yadava, Department of Chemistry, D.D.U. Gorakhpur University for her encouragement and cooperation. The authors are also thankful to the U.G.C., New Delhi for financial assistance in the form of major research project no. 41 – 341/2012 (SR).

Disclosure statement

No potential conflict of interest was reported by the authors.

Additional information

Funding

This work was supported by the University Grants Commission [Major Research Project no. 41 – 341/2012 (SR).].