Collect. Czech. Chem. Commun. 1993, 58, 2625-2641

Excess Volumes of Mixtures of Some Alkyl Esters and Ketones with Alkanols

Anwei Qin, Dolly E. Hoffman and Petr Munk

Department of Chemistry and Biochemistry and Center for Polymer Research, The University of Texas at Austin, Austin, Texas 78712, U.S.A.


Excess volumes were calculated from measured densities of binary mixtures of five linear alkanols (methanol, ethanol, 1-propanol, 1-butanol, and 1-pentanol) with five n-alkyl acetates (methyl, ethyl, propyl, butyl, and pentyl acetates) and with two ketones (acetone and 2-butanone) at 20 °C. The whole composition range was studied for all thirty-five binary systems. For a given alcohol, the ∆V1ϑ2 value decreases with increasing size of the carbonyl compound. For a given carbonyl compound, it increases with the length of the alkanol. Systems with methyl acetate as one component have relatively large ∆V1ϑ2 values, while systems with methanol display different compositional dependency in respect to systems with other alcohols.