Journal article
Formation of mixed halogenated dibenzo-p-dioxins and dibenzofurans (PXDD/Fs)
Chemosphere, Vol.137, pp.149-156
2015
Abstract
This contribution investigates mechanistic and kinetic parameters pertinent to formation of mixed dibenzo-p-dioxins and dibenzofurans (PXDD/Fs) from the condensation reactions involving 2-chlorophenoxy (2-CPxy) and 2-bromophenoxy (2-BPxy) radicals. Keto-ether structures act as direct intermediates for the formation of DD, 1-MCDD, 1-MBDD, 1-B,6-CDD and 1-B,9-CDD molecules. Likewise, diketo adducts initiate the formation of 4-MCDF, 4-MBDF and 4-B,6-CDF compounds through interconversion and rearrangement reactions. As formation mechanisms of halogenated dibenzo-p-dioxins and dibenzofurans from precursors of brominated and chlorinated phenols are insensitive to substitution at meta and para sites, our mechanistic and kinetic analysis of reactions involving 2-BPxy and 2-CPxy should also apply to higher halogenated phenoxy radicals.
Details
- Title
- Formation of mixed halogenated dibenzo-p-dioxins and dibenzofurans (PXDD/Fs)
- Authors/Creators
- A. Saeed (Author/Creator) - Murdoch UniversityM. Altarawneh (Author/Creator) - Murdoch UniversityB.Z. Dlugogorski (Author/Creator) - Murdoch University
- Publication Details
- Chemosphere, Vol.137, pp.149-156
- Publisher
- Elsevier
- Identifiers
- 991005542641907891
- Copyright
- © 2015 Elsevier Ltd.
- Murdoch Affiliation
- School of Engineering and Information Technology
- Language
- English
- Resource Type
- Journal article
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