Accession Number : AD0769160

Title :   Electron Donor-Acceptor Reagents in the Analysis of Pesticides. VII. A Simple Model System Hydrolysis of Some Carbamate Pesticides,

Corporate Author : NATIONAL RESEARCH COUNCIL OF CANADA HALIFAX (NOVA SCOTIA) ATLANTIC REGIONAL LAB

Personal Author(s) : Macneil,James D. ; Frei,Roland W. ; Frie-Haeusler,Marianne ; Hutzinger,Otto

Report Date : 23 OCT 1972

Pagination or Media Count : 9

Abstract : The decomposition of the carbamate insecticides carbaryl (1-naphthyl-N-methylcarbamate) and Mobam (4-benzothienyl-N-methylcarbamate) and the herbicides IPC ((isopropyl)-N-phenylcarbamate) and CIPC ((isopropyl-N-13-chlorophenyl) carbamate) in water at various pH's was investigated. Analyses were performed in situ on silica-gel thin-layer chromatograms by reflectance spectroscopy after the developed chromatograms had been sprayed with the reagent CNTNF (9-dicyanomethylene-2,4,7-, trinitrofluorene) to form visible pi-complexes of the pesticides. Carbaryl and Mobam decomposed rapidly at basic pH's but were stable in acid. IPC and CIPC were stable in water at pH's tested. (Author)

Descriptors :   (*Carbamates, *Hydrolysis), (*Pesticides, Hydrolysis), (*Herbicides, Hydrolysis), pH factor, Decomposition, Thin layer chromatography, Reflectance, Complex compounds, Canada, Stability, Chemicals

Subject Categories : Organic Chemistry

Distribution Statement : APPROVED FOR PUBLIC RELEASE