Competitive immobilization of multiple component chlorinated solvents by cyclodextrin derivatives

Jung-Seok Yang; Kitae Baek; Tae-Soon Kwon; Ji-Won Yang

doi:10.1016/j.jhazmat.2006.04.020

Competitive immobilization of multiple component chlorinated solvents by cyclodextrin derivatives

J Hazard Mater. 2006 Oct 11;137(3):1866-9. doi: 10.1016/j.jhazmat.2006.04.020. Epub 2006 Apr 25.

Authors

Jung-Seok Yang¹, Kitae Baek, Tae-Soon Kwon, Ji-Won Yang

Affiliation

¹ Department of Chemical and Biomolecular Engineering, KAIST, 373-1 Guseong-dong, Yuseong-gu, Daejeon 305-701, Republic of Korea.

PMID: 16875779
DOI: 10.1016/j.jhazmat.2006.04.020

Abstract

Immobilization of chlorinated solvents with hydropropyl and methyl cyclodextrins (CDs) was observed by head-space analysis to obtain the stability constants in single and multiple component systems. In each single component system, the highest stability constant was 0.299 mM(-1) for perchloroethylene (PCE) by methyl-beta-cyclodextrin (M-beta-CD), 0.136 mM(-1) for trichloroethylene (TCE) by M-beta-CD, 0.106 mM(-1) for cis-dichloroethylene (cis-DCE) by hydropropyl-alpha-cyclodextrin, and 0.090 mM(-1) for trans-dichloroethylene (trans-DCE) by M-beta-CD. When HP-beta-CD and M-beta-CD were used, the stability constants of PCE and TCE increased and those of DCEs decreased in a multiple component system. Differences in stability constants of single and multiple component systems thus should be important parameters when cyclodextrins are applied to solubilization of multiple chlorinated solvents.

Publication types

Research Support, Non-U.S. Gov't

MeSH terms

Chemical Phenomena
Chemistry, Physical
Chlorine / chemistry*
Cyclodextrins / chemistry*
Solvents

Substances

Cyclodextrins
Solvents
Chlorine