Solubility of Dimethyl Ether in Pentaerythritol Tetrahexanoate (PEC6) and in Pentaerythritol Tetraoctanoate (PEC8) Between (283.15 and 353.15) K

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• 作者：Yanjun Sun ; Xiaopo Wang ; Na Gong ; Zhigang Liu
• 刊名：Journal of Chemical & Engineering Data
• 出版年：2014
• 出版时间：November 13, 2014
• 年：2014
• 卷：59
• 期：11
• 页码：3791-3797
• 全文大小：330K
• ISSN：1520-5134

文摘

The solubilities of dimethyl ether (DME) in pentaerythritol tetrahexanoate (PEC6) and in pentaerythritol tetraoctanoate (PEC8) have been measured from (283.15 to 353.15) K based on the isochoric method. The expanded uncertainty (k = 2) of the measured solubility data was estimated to be less than 3.0 %. The experimental solubility data were correlated based on the Peng鈥揜obinson equation of state with Huron鈥揤idal mixing rules and the NRTL equation for the excess Gibbs energy at infinite pressure. The absolute average deviation between experimental data and calculated values was 1.1 % and 1.0 % for DME + PEC6 system and DME + PEC8 system, respectively. The maximum absolute deviation was 2.93 % for the DME + PEC6 system and 2.90 % for DME + PEC8 system.