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231223s2007 xx ||||| 00| ||eng c |
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|a (DE-627)NLM170169766
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|a (NLM)17489278
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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|a Gautam, Sumit Kumar
|e verfasserin
|4 aut
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|a Complete dechlorination of DDE/DDD using magnesium/palladium system
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|c 2007
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|a Text
|b txt
|2 rdacontent
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|a ohne Hilfsmittel zu benutzen
|b n
|2 rdamedia
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|b nc
|2 rdacarrier
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|a Date Completed 13.09.2007
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|a Date Revised 22.09.2019
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|a published: Print
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|a Citation Status MEDLINE
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|a Kinetic studies on the dechlorination of 1,1-dichloro-2,2 bis (4,-chlorophenyl) ethane (DDD) and 1,1,dichloro-2,2 bis (4,-chlorophenyl) ethylene (DDE) in 0.05% biosurfactant revealed that the reaction follows second-order kinetics. The rate of reaction was dependent on the presence of acid, initial concentrations of the target compound, and zerovalent magnesium/tetravalent palladium. Gas chromatography-mass spectrometry analyses of DDE dechlorination revealed the formation of a completely dechlorinated hydrocarbon skeleton, with diphenylethane as the end product, thereby implying the removal of all four chlorine atoms of DDE. In the case of DDD, we identified two partially dechlorinated intermediates [namely, 1,1-dichloro-2, 2 bis (phenyl) ethane and 1, chloro-2, 2 bis (phenyl) ethane] and diphenylethane as the end product. On the basis of products formed from DDD dehalogenation, we propose the removal of aryl chlorine atoms as a first step. Our investigation reveals that biosurfactant may be an attractive solubilizing agent for DDT and its residues. The magnesium/palladium system is a promising option because of its high reactivity and ability to achieve complete dechlorination of DDE and DDD
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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|a Insecticides
|2 NLM
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|a Dichlorodiphenyl Dichloroethylene
|2 NLM
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|a 4M7FS82U08
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|a Palladium
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|a Magnesium
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|a I38ZP9992A
|2 NLM
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|a Dichlorodiphenyldichloroethane
|2 NLM
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|a V14159DF29
|2 NLM
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|a Suresh, Sumathi
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Water environment research : a research publication of the Water Environment Federation
|d 1998
|g 79(2007), 4 vom: 19. Apr., Seite 430-5
|w (DE-627)NLM098214292
|x 1554-7531
|7 nnns
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| 773 |
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|g volume:79
|g year:2007
|g number:4
|g day:19
|g month:04
|g pages:430-5
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|d 79
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