Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/65346
Type: Artigo de periódico
Title: New applications of the ERAS-Model: excess volumes of binary liquid mixtures of 1-alkanols with acetonitrile
Author: Pina, CG
Francesconi, AZ
Abstract: The applicability of the ERAS-Model to strong polar systems such as 1-alkanol + acetonitrile was analysed. For this purpose, densities for binary mixtures of 1-heptanol and l-octanol with acetonitrile have been measured at 293.15, 298.15, and 313.15 K using a vibrating-tube densimeter. Excess molar volumes (V-m(E)) were determined. Both systems exhibit positive V-m(E) values over the entire composition range in the temperature range studied. ERAS-Model calculations allowing for self-association for both components alkanol and acetonitrile were performed. The agreement between theoretical and experimental results is satisfactory only for the composition central range. A simplified version of the model, without the chemical contribution, gives better results. (C) 1998 Elsevier Science B.V.
Subject: experiments
modeling
excess volumes
alkanols
acetonitrile
Country: Holanda
Editor: Elsevier Science Bv
Rights: fechado
Identifier DOI: 10.1016/S0378-3812(97)00294-X
Date Issue: 1998
Appears in Collections:Unicamp - Artigos e Outros Documentos

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