| 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
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| NTIS |
PB-289 653 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
| Collation |
9p |
| Abstract |
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. |
| Supplementary Notes |
Pub. in Water Research, v12(8), p565-571 1978. |
| NTIS Title Notes |
Journal article. |
| Title Annotations |
Reprint: Carbaryl, Propham and Chlorpropham: A Comparison of the Rates of Hydrolysis and Photolysis with the Rate of Biolysis. |
| PUB Date Free Form |
1978 |
| Category Codes |
7D; 8H; 68E; 68D; 99F; 48G |
| NTIS Prices |
PC A02/MF A01 |
| Primary Description |
600/01 |
| Document Type |
NT |
| Cataloging Source |
NTIS/MT |
| Control Number |
323753853 |
| Origin |
NTIS |
| Type |
CAT |
