Main Title |
Organophosphate and Organophosphorothionate Esters: Application of Linear Free Energy Relationships to Estimate Hydrolysis Rate Constants for Use in Environmental Fate Assessment. |
Author |
Wolf, N. Lee ;
|
CORP Author |
Environmental Research Lab., Athens, GA. |
Year Published |
1980 |
Report Number |
EPA-600/J-80-206; |
Stock Number |
PB81-148710 |
Additional Subjects |
Hydrolysis ;
Reaction kinetics ;
Organic phosphates ;
Phosphorus organic acid esters ;
Environmental surveys ;
Assessments ;
Esters ;
Reprints ;
Path of pollutants ;
Phosphorothionates
|
Holdings |
Library |
Call Number |
Additional Info |
Location |
Last Modified |
Checkout Status |
NTIS |
PB81-148710 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
Collation |
9p |
Abstract |
Hydrolysis rate constants required for assessing the environmental fate of certain organophosphate and organophosphorothionate esters may be estimated by use of linear free energy relationships (LFERs). LFERs for the second-order alkaline rate constants and the pKa of the conjugate acid of the leaving groups were established for 0,0-diethyl-0-substituted phosphates and phosphorothionates. Also, the second-order alkaline hydrolysis rate constants of selected triaryl phosphates were correlated with the Hammett-sigma constants. Existing LFERs for diaryl phosphate ester anions along with monoaryl phosphate ester mono- and dianions were used to predict hydrolytic half-lives under reaction conditions that are characteristic of aquatic environments. (Copyright (c) Pergamon Press Ltd. 1980.) |
Supplementary Notes |
Pub. in Chemosphere, v9 p571-579 1980. |
NTIS Title Notes |
Journal article. |
Title Annotations |
Reprint: Organophosphate and Organophosphorothionate Esters: Application of Linear Free Energy Relationships to Estimate Hydrolysis Rate Constants for Use in Environmental Fate Assessment. |
PUB Date Free Form |
c1980 |
Category Codes |
7D; 68; 99F |
NTIS Prices |
PC A02/MF A01 |
Primary Description |
600/01 |
Document Type |
NT |
Cataloging Source |
NTIS/MT |
Control Number |
323791376 |
Origin |
NTIS |
Type |
CAT |