Abstract
Vapour–liquid equilibrium (VLE) data for the binary systems ethanol+methyl propanoate and ethanol+methyl butanoate at 326.30 and 346.30 K and vapour pressures (VPs) for both esters were measured by a circulation method. The two systems exhibit azeotropic behaviour. The VLE data were correlated using the Redlich–Kister, Wilson and NRTL equations. Molar excess volumes for the binary systems at 298.15 K were determined and correlated.
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