Enthalpies of mixing at 298.15 K of a methyl alkanoate (from acetate to pentanoate) with n-alkanes (n-tridecane and n-pentadecane)

Abstract

Excess molar enthalpies hE have been measured for the binary liquid mixtures of four methyl alkanoates (acetate, propanoate, butanoate and pentanoate) with two n-alkanes (n-tridecane and n-pentadecane) at 298.15 K, using an isothermal microcalorimeter. All the mixtures studied were endothermic, the hE values for a given n-alkane decreasing with lengthening of the aliphatic chain of the methyl ester. By contrast, the values of hE increased quasi-regularly as the number of carbon atoms in the n-alkane increased. © 1990.