Experimental enthalpies of mixtures of alkylfluoroethers + n-alkanes at 298.15 K

Abstract

In this work, excess molar enthalpies, H m E, at 298.15 K and atmospheric pressure of methylnonafluorobutylether + alkane (hexane, octane, decane, dodecane) and ethylnonafluorobutylether + alkane (hexane, octane, decane, dodecane) are reported. Values of excess molar enthalpies were measured using a Calvet microcalorimeter. The binary experimental data were fitted using a Redlich–Kister variable-degree polynomial. The excess molar enthalpy is positive for all the mixtures. Phase separation is found in the range of 0.3< x<0.8 and 0.3< x<0.94 for the mixtures methylnonafluorobutyl ether + (decane, or dodecane), respectively.