Excess enthalpies of 72 binary liquid mixtures of methyl n-alkanoates (C4 - C16) + alkan-1-ols (C2 - ClO) at 298.15 K

Abstract

Enthalpy-of-miring measurements HE are reponed at 298.15 Kfor 72 binary mixtures formed by eight methyl n alkanoates (propanoate, butanoate, pentanoate, heptanoate, nonanoate, undecanoate, tridecanoate, and pentadecanoate) with nine alkan-1-ols (ethanol through decan-1-ol). All the mixtures are endothermic with a regular increase of J1E as the chain length of the alkan-1- ol increases, except the methyl nonanoate + butan-1-ol mixture. On the contrary, HE regulary decreases with the chain length of the methyl n-alkanoates, except for methyl butanoate + ethanoi + propan-1-oi or + butan-1-ol ·1nese exceptions are observed also in the variation of the molar excess volumes with the chain length of the molecules.