Excess molar enthalpies of the ternary mixture: 2,2,4-trimethylpentane plus cyclohexane plus n-octane

Microcalorimetric measurements of excess molar enthalpies, at 298.15 K, are reported for x(1)(CH3)(3)CCH2CH(CH3)(2) + x(2)c- (CH2)(6) + x(3)CH(3)(CH2) (6)CH3. A smooth representation of the results is presented and used to con struct constant excess molar enthalpy contours on a Roozeboom diagram. It i s shown that good estimates of the ternary enthalpies can be obtained from the Flory theory, using only the physical properties of the components and their binary mixtures. (C) 2000 Elsevier Science B.V. All rights reserved.