Binary solid-liquid equilibrium systems containing fatty acids, fatty alcohols and trilaurin by differential scanning calorimetry

被引:17
作者
de Matos, Flavio Cardoso [1 ]
da Costa, Mariana Conceicao [2 ]
de Almeida Meirelles, Antonio Jose [1 ]
Caldas Batista, Eduardo Augusto [1 ]
机构
[1] Univ Estadual Campinas, Dept Food Engn, Sch Food Engn, Campinas, SP, Brazil
[2] Univ Estadual Campinas, Sch Appl Sci, R Pedro Zaccaria 1300, BR-13484350 Limeira, SP, Brazil
基金
巴西圣保罗研究基金会;
关键词
Solid-liquid equilibrium; Fatty systems; Differential scanning calorimetry; Trilaurin; Thermodynamic modelling; PHASE-DIAGRAMS; HEAT-CAPACITIES; STEARIC-ACID; MIXTURES; BEHAVIOR; ENTHALPIES; CRYSTALLIZATION; 1-OCTADECANOL; POLYMORPHISM; 1-EICOSANOL;
D O I
10.1016/j.fluid.2016.04.008
中图分类号
O414.1 [热力学];
学科分类号
摘要
Solid liquid phase diagrams of six binary mixtures composed by trilaurin plus fatty acids (myristic acid, palmitic acid and stearic acid) and trilaurin plus fatty alcohols (1-tetradecanol, 1-hexadecanol and 1-octadecanol) were studied by differential scanning calorimetry (DSC) and some mixtures by optical microscopy. The experimental data showed that all the studied systems present an eutectic point. Trilaurin + 1-tetradecanol and trilaurin + 1-hexadecanol systems exhibited a partial formation of solid solution. Experimental data were used to adjust the parameters of the three-suffix Margules and NRTL models and the results showed that these models can appropriately describe the liquidus lines of above mentioned systems. (c) 2016 Elsevier B.V. All rights reserved.
引用
收藏
页码:74 / 83
页数:10
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