Record Display for the EPA National Library Catalog


OLS Field Name OLS Field Data
Main Title Carbaryl, Propham and Chlorpropham: A Comparison of the Rates of Hydrolysis and Photolysis with the Rate of Biolysis.
Author Wolfe, N. L. ; Zepp, R. G. ; Paris, D. F. ;
CORP Author Environmental Research Lab., Athens, GA.
Year Published 1978
Report Number EPA/600/J-78/053;
Stock Number PB-289 653
Additional Subjects Water pollution ; Herbicides ; Reaction kinetics ; Water chemistry ; Hydrolysis ; Photolysis ; Biodeterioration ; Carbamates ; Carbaryl ; Carbamic acid/methyl-(naphthyl-ester) ; Chem Hoe ; Carbamic acid/isopropyl-N-phenyl ; Reprints ; Chloropropham ; Carbamic acid/chloro-isopropyl-N-phenyl
Library Call Number Additional Info Location Last
NTIS  PB-289 653 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 06/23/1988
Collation 9p
Alkaline hydrolysis half-lives, based on second-order alkaline hydrolysis rate constants, for carbaryl, propham (IPC), and chlorpropham (CIPC) at pH 9 (27 degrees) are 0.15>1 x 10 to the 4th power days, and >1 x 10 to the 4th power days, respectively. The direct photolysis half-life for carbaryl in sunlight is 6.6 days in distilled water. Calculated minimum half-lives for the direct photolysis of IPC and CIPC in a clear water body near the surface are 254 and 121 days, respectively. Half-lives, based on second-order fungal rate constants, for the IPC and CIPC are calculated under given conditions. Kinetic data on hydrolysis, photolysis, and biolysis are employed as a basis for comparison of the relative importance of these three degradation processes.