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Type: Artigo de periódico
Title: Solid-Liquid Equilibrium of Saturated Fatty Acids plus Triacylglycerols
Author: Costa, MC
Boros, LAD
Rolemberg, MP
Krahenbuhl, MA
Meirelles, AJA
Abstract: Phase diagrams of tricaprylin (1,3-di(octanoyloxy)propan-2-yl octanoate) + myristic acid (tetradecanoic acid), commercial triolein + palmitic acid (hexadecanoic acid), and trilinolenin (propane-1,2,3-triyl tris[(9Z, 12Z, 15Z)-octadeca-9,12,15-trienoate]) + stearic acid (octadecanoic acid) were obtained by differential scanning calorimetry (DSC). The occurrence of an eutectic point very close to the pure triacylglycerol can be assumed in all of the three investigated systems. The liquid phase was modeled using Margules two-suffix, Margules three-suffix, nonrandom two-liquid (NRTL), and universal quasichemical functional group activity coefficient (UNIFAC) Dortmund models. The best modeling results were obtained using the NRTL model. The UNIFAC Dortmund model describes the multicomponent system containing commercial triolein + palmitic acid well.
Country: EUA
Editor: Amer Chemical Soc
Rights: fechado
Identifier DOI: 10.1021/je900410j
Date Issue: 2010
Appears in Collections:Unicamp - Artigos e Outros Documentos

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