Excess molar enthalpies of the ternary mixtures: (methyl tert-butyl ether or 2-methyltetrahydrofuran + cyclohexane + 2,2,4-trimethylpentane) at the temperature 298.15 K

Abstract

Measurements of excess molar enthalpies at the temperature T = 298.15 K in a flow microcalorimeter, are reported for the two ternary mixtures { x 1(C 5H 12O or C 5H 10O) + x 2cC 6H 6 + x 3(CH 3) 2CHCH 2C(CH 3) 3} by mixing component 1 with binary mixtures of components 2 and 3. Smooth representations of the ternary results are presented and used to construct constant excess molar enthalpy contours on Roozeboom diagrams. The application of the Liebermann and Fried model to predict ternary excess enthalpies yielded approximate but correct trend of variation with concentration and the presence of an internal maximum in both ternary systems, using only the physical properties of the components and their binary mixtures.