CORRELATION LENGTHS AND DENSITY-FLUCTUATIONS IN SUPERCRITICAL STATES OF CARBON-DIOXIDE

被引：116

作者：

NISHIKAWA, K

TANAKA, I

机构：

[1] Department of Chemistry, Faculty of Education, Yokohama National University, Hodogaya-ku, Yokohama, 240, Tokiwadai

来源：

CHEMICAL PHYSICS LETTERS | 1995年 / 244卷 / 1-2期

关键词：

D O I：

10.1016/0009-2614(95)00818-O

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Small-angle X-ray scattering intensities from several thermodynamic states of supercritical CO2 were measured. The correlation lengths and density fluctuations of the states obtained by Ornstein-Zernike plots are found to form a ridge along the extension of the coexistence curve of gas and liquid to the supercritical region, corresponding to the critical isochore. The states where these parameters take maxima are shown to be closely related to the solubility of the supercritical fluid and the reactivity of the solute in it.

引用

页码：149 / 152

页数：4

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