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Kinetics and Mechanism of the Sonolytic Degradation of Chlorinated Hydrocarbons: Frequency Effects

Hung, Hui-Ming and Hoffmann, Michael R. (1999) Kinetics and Mechanism of the Sonolytic Degradation of Chlorinated Hydrocarbons: Frequency Effects. Journal of Physical Chemistry A, 103 (15). pp. 2734-2739. ISSN 1089-5639. https://resolver.caltech.edu/CaltechAUTHORS:20150807-112623792

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Abstract

The kinetics of the sonolytic degradation of aqueous solutions of carbon tetrachloride and hexachloroethane (C_2Cl_6) were investigated at six different frequencies over the range from 20 to 1078 kHz. The rates of degradation of CCl_4 and C_2Cl_6 were shown to increase with increasing frequency with optimal degradation rates at 500 kHz. At 205 kHz, the relative rates of sonolytic degradation of the three chlorinated methanes followed the order of CCl_4 > CHCl_3 > CH_2Cl_2. Hexachloroethane, which was formed as the primary intermediate in the degradation of CCl_4, was degraded at a rate comparable to that of CCl_4 at all six frequencies.


Item Type:Article
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1021/jp9845930DOIArticle
http://pubs.acs.org/doi/abs/10.1021/jp9845930PublisherArticle
ORCID:
AuthorORCID
Hung, Hui-Ming0000-0002-6755-6359
Hoffmann, Michael R.0000-0001-6495-1946
Additional Information:© 1999 American Chemical Society. Received: December 1, 1998; In Final Form: February 4, 1999. Publication Date (Web): March 19, 1999. The authors wish to thank Linda Weavers, Ralf H. Höchemer, Chao-Ping Hsu, and Christian Schiller for their helpful discussions. Financial support from the Office of Naval Research, ONR, and the Department of Energy is gratefully acknowledged.
Funders:
Funding AgencyGrant Number
Office of Naval Research (ONR)UNSPECIFIED
Department of Energy (DOE)UNSPECIFIED
Issue or Number:15
Record Number:CaltechAUTHORS:20150807-112623792
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20150807-112623792
Official Citation:Kinetics and Mechanism of the Sonolytic Degradation of Chlorinated Hydrocarbons:  Frequency Effects Hui-Ming Hung and Michael R. Hoffmann The Journal of Physical Chemistry A 1999 103 (15), 2734-2739 DOI: 10.1021/jp9845930
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:59315
Collection:CaltechAUTHORS
Deposited By: Ruth Sustaita
Deposited On:10 Aug 2015 16:14
Last Modified:09 Mar 2020 13:18

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