Accession Number:

AD0769160

Title:

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

Descriptive Note:

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:

1972-10-23

Pagination or Media Count:

9.0

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 pHs 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 pHs but were stable in acid. IPC and CIPC were stable in water at pHs 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