Excess molar enthalpies and excess molar volumes of propylene carbonate plus seven pentanol isomers at 298.15 K

Excess molar enthalpies, H-m(E), and excess molar volumes, V-m(E), of propylene carbonate + seven pentanol isomers, namely, 1-, 2-, and 3-pentanol, 2-methyl-1-butanol, 2-methyl-2-butanol, 3-methyl-1-butanol, and 3-methyl-2-butanol, have been determined at 298.15 K and at atmospheric pressure using a flow microcalorimeter and a digital densimeter. H-m(e) and V-m(E) values are always positive, with the exception of the volumetric data for the mixture propylene carbonate + 3-methyl-2-butanol, showing a sign inversion of V-m(E). The Redlich-Kister equation, fitted to the experimental results, provides a satisfactory mathematical representation of H-m(E) and V-m(E) in all mixtures. Results have been qualitatively discussed.