Vapor-liquid equilibria for methanol plus pentyl acetate, vinyl acetate plus pentyl acetate, and methanol plus isopentyl acetate

Isobaric vapor-liquid equilibria were determined at 101.3 kPa for methanol + pentyl acetate, methanol + isopentyl acetate, and vinyl acetate + pentyl acetate. The thermodynamic consistency of the experimental data was checked by using a modified Dechema test. The activity coefficients were correlated with Margules, van Laar, Wilson, NRTL, and Wilson equations. None of the systems shows azeotropy. Pentyl acetate is a potential extractive distillation entrainer of the azeotropic mixture methanol + vinyl acetate. (C) 2001 Elsevier Science B.V. All rights reserved.