High Pressure Solid鈥揕iquid Equilibrium of Fatty Alcohols Binary Systems from 1-Dodecanol, 1-Tetradecanol, 1-Hexadecanol, and 1-Octadecanol

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• 作者：Nat谩lia Daniele Dorighello Carareto ; Mariana Concei莽茫o Costa ; Antonio Jos茅 Almeida Meirelles ; J茅r么me Pauly
• 刊名：Journal of Chemical & Engineering Data
• 出版年：2015
• 出版时间：October 8, 2015
• 年：2015
• 卷：60
• 期：10
• 页码：2966-2973
• 全文大小：398K
• ISSN：1520-5134

文摘

The melting temperatures of four fatty alcohols, 1-dodecanol, 1-tetradecanol, 1-hexadecanol, and 1-octadecanol, were measured at atmospheric pressure using a 渭DSC calorimeter and at higher pressures (up to 80 MPa) thanks to a dedicated microscope. The solid鈥搇iquid phase diagrams of six binary mixtures formed by these fatty alcohols, namely, 1-dodecanol + 1-tetradecanol, 1-dodecanol + 1-hexadecanol, 1-dodecanol + 1-octadecanol, 1-tetradecanol + 1-hexadecanol, 1-tetradecanol + 1-octadecanol, and 1-hexadecanol + 1-octadecanol systems, were also measured using high pressure microscopy within the range of 0.1 MPa to 80 MPa. In addition, the phase diagrams of the 1-dodecanol + 1-tetradecanol, 1-tetradecanol + 1-hexadecanol, and 1-hexadecanol + 1-octadecanol systems were also measured by DSC in order to compare the results obtained from the microscopy. On the basis of the experimental data, it could be concluded that the behavior of the phase diagrams is slightly affected by the pressure, even within very large pressure ranges such as the ones studied in this work.