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Isomerization of beta-HCH in aqueous solution.

Deo, P. G. and Hasan, S. B. and Majumder, S. K. (1980) Isomerization of beta-HCH in aqueous solution. Journal of Environmental Science Health B, 15 (2). 147-164; 15 ref..

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PESTAB. beta-HCH (beta-BHC) was purified by recrystallization and 5 mg were reacted with 125 ml autoclaved distilled H2O for various time intervals at 25 +- 1C. The filtrate was examined by GLC and was found to contain alpha, beta, gamma (lindane) and delta-BHC isomers as well as some unidentified compounds. An instantaneous dehydrochlorination of beta-BHC in distilled water was also observed. The acetone extract of the filtrate was further shaken for 4 days and bioassay toxicity studies were performed on mosquito and flour-beetle larvae and on houseflies. The toxicity of the extract was significantly greater than equal amounts of untreated beta-BHC in acetone. The results indicate beta-BHC may isomerize in aquatic environments and therefore, may be a potential source of more biologically active isomers in the environment.

Item Type: Article
Uncontrolled Keywords: Hezachlorocyclohezane, isomerization, aqueous filtrate, dehydroohlorination
Subjects: 500 Natural Sciences and Mathematics > 04 Chemistry and Allied Sciences > 26 Pesticide Chemistry
Divisions: Food Protectants and Infestation Control
Depositing User: Food Sci. & Technol. Information Services
Date Deposited: 23 Mar 2018 03:53
Last Modified: 23 Mar 2018 03:53
URI: http://ir.cftri.com/id/eprint/8622

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