Excess molar volumes of binary mixtures containing vinyl acetate + alkyl acetates at 298.15 K. Anomalous behavior of methyl acetate + vinyl acetate mixtures

Excess molar volumes for binary mixtures containing vinyl acetate + methyl acetate, +ethyl acetate, +propyl acetate, +isopropyl acetate, +butyl acetate, +isobutyl acetate, +pentyl acetate, +isopentyl acetate have been determined from density measurements at 298.15 K using an Anton Paar DMA 58 vibrating tube densitometer. A maximum in densities has been observed for the methyl acetate + vinyl acetate system, where samples with different composition showed the same density. Excess molar volumes increase with an increase of the size of the second acetate.