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Title: Removal of aromatic hydrocarbon compounds by hydroxypropyl-cyclodextrin

Abstract

Activated carbon has been used for the recovery and removal of benzene, toluene, and xylenes in air and water for a long time. However, removal of benzene, toluene, and xylenes from soil is very difficult. They can be removed by an increase in the apparent solubility of organic compounds in soil. The apparent solubilities of benzene, toluene, and xylene were investigated to estimate their inclusion behavior into natural cyclodextrins (CDs) and hydroxypropyl-cyclodextrins (HP-CDs) in the liquid phase. The apparent solubilities of benzene, toluene, and xylenes did not increase by adding natural CDs but did increase when HP-CDs were added. Benzene, toluene, and xylenes in a HP-CD solution depended on the relationship between the molecular diameter of benzene, toluene, and xylenes, the CD cavity size, and the 1-octanol-water partition coefficient. That of p-xylene was larger than that of o-xylene and m-xylene because of the smallest steric hindrance of p-xylene.

Publication Date:
OSTI Identifier:
20000024
Alternate Identifier(s):
OSTI ID: 20000024
Resource Type:
Journal Article
Journal Name:
Journal of Colloid and Interface Science
Additional Journal Information:
Journal Volume: 217; Journal Issue: 2; Other Information: PBD: 15 Sep 1999; Journal ID: ISSN 0021-9797
Country of Publication:
United States
Language:
English
Subject:
54 ENVIRONMENTAL SCIENCES; BENZENE; TOLUENE; XYLENES; SOLUBILITY; REMEDIAL ACTION; SOILS; CLATHRATES; OLIGOSACCHARIDES; SOLVENT PROPERTIES

Citation Formats

NONE. Removal of aromatic hydrocarbon compounds by hydroxypropyl-cyclodextrin. United States: N. p., 1999. Web.
NONE. Removal of aromatic hydrocarbon compounds by hydroxypropyl-cyclodextrin. United States.
NONE. Wed . "Removal of aromatic hydrocarbon compounds by hydroxypropyl-cyclodextrin". United States.
@article{osti_20000024,
title = {Removal of aromatic hydrocarbon compounds by hydroxypropyl-cyclodextrin},
author = {NONE},
abstractNote = {Activated carbon has been used for the recovery and removal of benzene, toluene, and xylenes in air and water for a long time. However, removal of benzene, toluene, and xylenes from soil is very difficult. They can be removed by an increase in the apparent solubility of organic compounds in soil. The apparent solubilities of benzene, toluene, and xylene were investigated to estimate their inclusion behavior into natural cyclodextrins (CDs) and hydroxypropyl-cyclodextrins (HP-CDs) in the liquid phase. The apparent solubilities of benzene, toluene, and xylenes did not increase by adding natural CDs but did increase when HP-CDs were added. Benzene, toluene, and xylenes in a HP-CD solution depended on the relationship between the molecular diameter of benzene, toluene, and xylenes, the CD cavity size, and the 1-octanol-water partition coefficient. That of p-xylene was larger than that of o-xylene and m-xylene because of the smallest steric hindrance of p-xylene.},
doi = {},
journal = {Journal of Colloid and Interface Science},
issn = {0021-9797},
number = 2,
volume = 217,
place = {United States},
year = {1999},
month = {9}
}