Solubility of p-nitrobenzoic acid in supercritical carbon dioxide with and without cosolvents

被引：15
|
作者：
Tian, GH [1 ]
Jin, JS [1 ]
Li, QS [1 ]
Zhang, ZT [1 ]
机构：
[1] Beijing Univ Chem Technol, Dept Chem Engn, Beijing 100029, Peoples R China
来源：
JOURNAL OF CHEMICAL AND ENGINEERING DATA | 2006年 / 51卷 / 02期
关键词：
D O I：
10.1021/je050354b
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
The solubilities of p-nitrobenzoic acid in supercritical carbon dioxide and carbon dioxide + cosolvents were determined at (308, 318, and 328) K and over the pressure range from (8.0 to 21.0) MPa. The effect of cosolvents, cyclohexane, ethanol, cyclohexane + acetone (equal-molar mixture), and acetone on the solubility of p-nitrobenzoic acid was studied at a mole fraction of 3.0 % (cosolvents in supercritical mixtures). The solubility data in supercritical carbon dioxide in the absence and presence of cosolvents were correlated by the equations proposed by Mendez-Santiago and Teja with satisfactory agreement, respectively.
引用
收藏
页码：430 / 433
页数：4
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