Investigations on the solubility of anthraquinone dyes in supercritical carbon dioxide by a flow method

被引：39

作者：

Wagner, B ^{[1
]}

Kautz, CB ^{[1
]}

Schneider, GM ^{[1
]}

机构：

[1] Ruhr Univ Bochum, Fak Chem, Lehrstuhl Phys Chem 2, D-44780 Bochum, Germany

来源：

FLUID PHASE EQUILIBRIA | 1999年 / 158卷

关键词：

flow method; supercritical solvent; solid-fluid equilibria; spectroscopy; anthraquinone dyes;

D O I：

10.1016/S0378-3812(99)00077-1

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

The solubility of 1,4-bis-(n-propylamino)-9,10-anthraquino in supercritical CO(2) was measured spectroscopically by a flow method. Isotherms were recorded for temperatures and pressures from 305 to 340 K and from 7.5 to 20 MPa, respectively. Within the range of the experiments, the equilibrium concentrations become higher with increasing pressures and densities at constant temperature. In the concentration vs. pressure plot the isotherms show intersection points, which can be explained by a density effect. (C) 1999 Elsevier Science B.V. All rights reserved.

引用

页码：707 / 712

页数：6

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