Contribution to study of the thermodynamics properties of mixtures containing 2-methoxy-2-methylpropane, alkanol, alkane

•Experimental enthalpies for the mixtures MTBE+pentanol+hexane and pentanol+hexane were measured.•No experimental ternary values were found in the currently available literature.•Excess molar enthalpies are positive over the whole range of composition.•The ternary contribution is also positive with the exception of a range located around the rich compositions of 1-pentanol.