Excess volumes for n-alkanols + n-alkanes II. Binary mixtures of n-pentanol, n-hexanol, n-octanol, and n-decanol + n-heptane

Abstract

Measurements of excess volumes at 298.15 K in a successive dilution dilatometer are reported for binary mixtures of the n-alkanols C 5, C 6, C 8, and C 10+ n-heptane. All the excess volume curves are sigmoid but the region of positive values of the excess volume decreases markedly with increasing length of the alkanol molecule, and for n-decanol+ n-heptane is limited to mole fractions of alkanol less than 0.03. Partial molar excess volumes of the components were calculated for each mixture and their values at infinite dilution were estimated.