Please use this identifier to cite or link to this item:
Type: Artigo de evento
Title: Experimental Study And Modelling Using The Eras-model Of The Excess Molar Volume Of Acetonitrile-alkanol Mixtures At Different Temperatures And Atmospheric Pressure
Author: Torres R.B.
Francesconi A.Z.
Volpe P.L.O.
Abstract: Densities of {(1-x)CH 3(CH 2) n-1OH + xCH 3CN} for n=1, 2, 3 or 4 have been determined as a function of composition at 288.15, 293.15, 298.15 and 303.15K at atmospheric pressure using a vibrating-tube densimeter (Anton Paar DMA 4500, resolution 1×10 -5gcm -3). Excess molar volumes were calculated. The V m E values were negative for acetonitrile-methanol mixtures and sigmoid for acetonitrile-alkanols (C 2-C 4) mixtures over the complete mole fraction range. V m E values increase in a positive direction with increase in chain length of the alkanols and with the temperature. The Extended Real Associated Solution Model (ERAS-Model) calculations allowing for self-association for the alkanols and complex formation between acetonitrile and alkanols have been used to correlate experimental data. The model is able to reproduce the asymmetrical V m E behavior of the studied systems, although agreement between theoretical and experimental values is less satisfactory for some concentration ranges. © 2003 Elsevier Science B.V. All rights reserved.
Rights: fechado
Identifier DOI: 10.1016/S0378-3812(03)00167-5
Date Issue: 2003
Appears in Collections:Unicamp - Artigos e Outros Documentos

Files in This Item:
File Description SizeFormat 
2-s2.0-0037675731.pdf213.63 kBAdobe PDFView/Open

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.