Excess Molar Enthalpies of Mixtures of Acetylene Tetrachloride with Dimethylsulfoxide, Acetone, Acetonitrile and N-Dibutyl Ether at 303.15 K
Pages 160-164
Atri D. Tripathi and Shalini Choudhary

DOI: http://dx.doi.org/10.6000/1929-5030.2015.04.03.4

Published: 08 September 2015

Abstract: The Excess molar enthalpies have been determined for binary liquid mixtures of acetylene tetrachloride (CHCl₂CHCl₂) (ATC) with dimethylsulfoxide, acetone, acetonitrile and n-dibutyl ether at the temperature 303.15 K by microcalorimetry.

The excess molar enthalpies are negative for all the mixtures over the whole composition range. The results were fitted with the Redlich-Kister equation by means of the least square method. The values of H^E decrease in the order: Dimethylsulphoxide > acetone>acetonitrile > dibutyl ether. The same decreasing trend was observed for calculated hydrogen bond energies of these systems. These results indicate the existence of specific interactions between all these components.

Keywords: Excess molar enthalpy, acetylene tetrachloride, acetone, microcalorimetry, hydrogen bonding.