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Type: Artigo de periódico
Title: The solid-liquid phase diagrams of binary mixtures of even saturated fatty alcohols
Author: Carareto, NDD
Costa, MC
Rolemberg, MP
Krahenbuhl, MA
Meirelles, AJA
Abstract: This study is part of a work developed in the author's research group on the solid-liquid equilibrium of fatty substances. The phase diagrams of the following fatty alcohol systems were determined by differential scanning calorimetry (DSC): 1-octanol + 1-dodecanol, 1-octanol + 1-tetradecanol, 1-decanol + 1-tetradecanol, 1-decanol + 1-hexadecanol and 1-dodecanol + 1-octadecanol. The liquidus lines of three of these systems were previously reported in the literature but the other two systems were never published. Moreover other transitions, in addition to the eutectic temperature, were also detected in all the systems. A region of solid solution at the extreme left of the phase diagrams was observed for all the binary mixtures. Polarized light microscopy was used to complement the characterization of the systems for a full grasp of the phase diagrams. The solid-liquid equilibrium was modeled using the Margules 2-suffix, Margules 3-suffix, NRTL and UNIFAC Dortmund equations. (c) 2011 Elsevier B.V. All rights reserved.
Subject: Solid-liquid equilibrium
Saturated fatty alcohols
Phase diagram
Country: Holanda
Editor: Elsevier Science Bv
Citation: Fluid Phase Equilibria. Elsevier Science Bv, v. 303, n. 2, n. 191, n. 192, 2011.
Rights: fechado
Identifier DOI: 10.1016/j.fluid.2011.01.028
Date Issue: 2011
Appears in Collections:Unicamp - Artigos e Outros Documentos

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