Solubility of chelating agents and metal-containing compounds in supercritical fluid carbon dioxide

被引：208

作者：

Smart, NG

Carleson, T

Kast, T

Clifford, AA

Burford, MD

Wai, CM

机构：

[1] UNIV IDAHO,DEPT CHEM,MOSCOW,ID 83843

[2] UNIV IDAHO,DEPT CHEM ENGN,MOSCOW,ID 83843

[3] UNIV LEEDS,SCH CHEM,LEEDS LS2 9JT,W YORKSHIRE,ENGLAND

来源：

TALANTA | 1997年 / 44卷 / 02期

基金：

英国工程与自然科学研究理事会;

关键词：

carbon dioxide; chelating agents; metal-containing compounds; solubility; supercritical fluids;

D O I：

10.1016/S0039-9140(96)02008-5

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

The solubility of 49 metal-containing compounds and 15 ''free'' ligands in supercritical fluid carbon dioxide is reviewed. Solubilities were found to range over eight orders of magnitude, with the highest value of solubility being 56 g l(-1). Metals complexed with fluorine substituted ligands were found to be the most soluble, and metals complexed with phenyl-substituted ligands the least soluble. A general trend for increasing solubility with increasing oxidation state is observed and this is correlated with the increased number of coordinating ligands protecting the metal center from interaction with the supercritical fluid and also due to the increased number of solvation interactions with the increased number of ligand groups.

引用

页码：137 / 150

页数：14

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