Main Title |
Captan Hydrolysis. |
Author |
Wolfe, N. Lee ;
Zepp, Richard G. ;
Doster, James C. ;
Hollis., Reginald C. ;
|
CORP Author |
Environmental Research Lab., Athens, Ga. |
Year Published |
1976 |
Report Number |
EPA/600/J076/030; |
Stock Number |
PB-265 291 |
Additional Subjects |
Fungicides ;
Water pollution ;
Hydrolysis ;
Reaction kinetics ;
Degradation ;
Chemical reactions ;
Pesticides ;
Chlorine organic compounds ;
Cycloalkene compounds ;
Experimental design ;
Captan ;
Cyclohexene dicarboximide/N-((trichloromethyl)thio) ;
Folpet ;
Captafol ;
Reprints
|
Holdings |
Library |
Call Number |
Additional Info |
Location |
Last Modified |
Checkout Status |
NTIS |
PB-265 291 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
Collation |
7p |
Abstract |
Captan (N-(trichloromethylthio)-4-cyclohexene-1,2-dicarboximide) undergoes hydrolysis readily in water with a maximum half-life of 710 min. Over the pH range 2-6, the reaction is pH independent and the pseudo-first-order rate constant is (1.8 + or - 0.1) x 10 to the -5th power/s. Above pH 7 the reaction is pH dependent and the second-order rate constant for alkaline hydrolysis is (5.7 + or - 0.4) x 10 to the 2nd power/MS. The products are 4-cyclohexene-1,2-dicarboximide, carbon dioxide, hydrochloric acid, and sulfur. Folpet (N-(trichloromethylthio)phthalimide) and captafol (N-(1,1,2,2-tetrachloroethylthio)-4-cyclohexene-1,2-dicarboxide) hydrolyze at pH 7 with rates similar to that of captan. It is very likely that hydrolysis will be an important degradative pathway for these fungicides in the aquatic environment. Copyright (c) 1976 by the American Chemical Socity. |
Availability Notes |
Pub. in Jnl. of Agricultural and Food Chemistry, v24 n5 p1041-1045 Sep/Oct 76. |
NTIS Title Notes |
Journal article. |
Title Annotations |
+++Reprint: Captan Hydrolysis. |
PUB Date Free Form |
16 Jan 76 |
Category Codes |
7D; 68E; 99F |
NTIS Prices |
Not available NTIS |
Primary Description |
600/01 |
Document Type |
NT |
Cataloging Source |
NTIS/MT |
Control Number |
323714450 |
Origin |
NTIS |
Type |
CAT |