Solubility of substituted aromatic hydrocarbons in supercritical difluoromethane

被引：26

作者：

Abbott, AP ^{[1
]}

Corr, S

Durling, NE

Hope, EG

机构：

[1] Univ Leicester, Dept Chem, Leicester LE1 7RH, Leics, England

[2] Ineos Fluor, Runcorn Tech Ctr, Runcorn WA7 4QD, Cheshire, England

来源：

JOURNAL OF CHEMICAL AND ENGINEERING DATA | 2002年 / 47卷 / 04期

关键词：

D O I：

10.1021/je0155397

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

The solubilities of a variety of substituted phenols and benzoic acid derivatives is determined in supercritical difluoromethane (HFC-32) at 90 degreesC using a capacitative method, and they are presented as a function of pressure. The compounds are shown to be more soluble than they are in CO2 under comparative conditions. The enhancement factor is used as a way of expressing solubility to remove the effect of vapor pressure; the observed trend is explained in terms of the polarity of the substituents. The solubility data are fitted to a Peng-Robinson equation of state for which a good correlation is observed.

引用

页码：900 / 905

页数：6

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