On the solid-liquid phase diagrams of binary mixtures of even saturated fatty alcohols: Systems exhibiting peritectic reaction

Author(s)

Carareto, Natalia D. D. ^[1] ; dos Santos, Adenilson O. ^[2] ; Rolemberg, Marlus P. ^[3] ; Cardoso, Lisandro P. ^[4] ; Costa, Mariana C. ^[5] ; Meirelles, Antonio J. A. ^[1]

Affiliation

^[1] Univ Estadual Campinas, Food Engn Fac, Dept Food Engn, EXTRAE, BR-13083862 Campinas, SP - Brazil

^[2] Univ Maranhao, Social Sci Hlth & Technol Ctr, UFMA, BR-65900410 Imperatriz, MA - Brazil

^[3] Univ Alfenas, Inst Sci & Technol, BR-37715400 Pocos De Caldas, MG - Brazil

^[4] Univ Estadual Campinas, Inst Phys GlebWataghin, BR-13083970 Campinas, SP - Brazil

^[5] Univ Estadual Campinas, Sch Appl Sci, BR-13484350 Limeira, SP - Brazil

• Document type: Journal article
• Source: Thermochimica Acta; v. 589, p. 137-147, AUG 10 2014.
• Web of Science Citations: 13

Abstract

The solid-liquid phase diagrams of the following binary mixtures of even saturated fatty alcohols are reported in the literature for the first time: 1-octanol (C8OH) + 1-decanol (C10OH), 1-decanol + 1-dodecanol (C12OH), 1-dodecanol + 1-hexadecanol (C16OH) and 1-tetradecanol (C14OH) + 1-octadecanol (C18OH). The phase diagrams were obtained by differential scanning calorimetry (DSC) using a linear heating rate of 1 K min(-1) and further investigated by using a stepscan DSC method. X-ray diffraction (XRD) and polarized light microscopy were also used to complement the characterization of the phase diagrams which have shown a complex global behavior, presenting not only peritectic and eutectic reactions, but also the metatectic reaction and partial immiscibility on solid state. (C) 2014 Elsevier B.V. All rights reserved. (AU)

• FAPESP's process: 07/06162-1 - Solid-Liquid Phase Equilibrium of Fatty Alcohol Binary Mixtures by Differential Scanning Calorimetry
• Grantee: Natália Daniele Dorighello Carareto
• Support Opportunities: Scholarships in Brazil - Master
• FAPESP's process: 12/05027-1 - Solid-liquid equilibrium of fatty compounds and biodiesel flash point
• Grantee: Mariana Conceição da Costa
• Support Opportunities: Program for Research on Bioenergy (BIOEN) - Young Investigators Grants
• FAPESP's process: 08/56258-8 - Phase equilibrium and purification processes in the production of biofuels and biocompounds
• Grantee: Antonio José de Almeida Meirelles
• Support Opportunities: Program for Research on Bioenergy (BIOEN) - Thematic Grants