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פותח על ידי קלירמאש פתרונות בע"מ -
Role of water in the hydrolysis of parathion and methylparathion on kaolinite
Year:
1976
Authors :
זלצמן, שרינה
;
.
מינגלגרין, אורי
;
.
Volume :
24
Co-Authors:
Saltzman, S., Division of Soil Residues Chemistry, Institute of Soils and Water, Volcani Center, Bet Dagan, Israel
Mingelgrin, U., Division of Soil Residues Chemistry, Institute of Soils and Water, Volcani Center, Bet Dagan, Israel, Department of Chemical Physics, Weizmann Institute of Science, Rehovot, Israel
Yaron, B., Division of Soil Residues Chemistry, Institute of Soils and Water, Volcani Center, Bet Dagan, Israel
Facilitators :
From page:
739
To page:
743
(
Total pages:
5
)
Abstract:
Oven-dried kaolinite has a catalytic effect upon parathion and methylparathion hydrolysis. Addition of water to kaolinite, in the limits of sorbed water, affected the degradation kinetics of both insecticides and increased the degradation rate. A slight increase in the moisture content above that corresponding to sorbed water results in a steep decrease in the degradation rate. Following hydrolysis, part of the organophosphate hydrolysis product is fixed at the clay surface. The data obtained suggest that water molecules associated with the exchangeable cations participate in the hydrolysis.
Note:
Related Files :
aluminum silicate
Hydrolysis
parathion
parathion methyl
theoretical study
עוד תגיות
תוכן קשור
More details
DOI :
Article number:
Affiliations:
Database:
סקופוס
Publication Type:
מאמר
;
.
Language:
אנגלית
Editors' remarks:
ID:
25290
Last updated date:
02/03/2022 17:27
Creation date:
17/04/2018 00:13
Scientific Publication
Role of water in the hydrolysis of parathion and methylparathion on kaolinite
24
Saltzman, S., Division of Soil Residues Chemistry, Institute of Soils and Water, Volcani Center, Bet Dagan, Israel
Mingelgrin, U., Division of Soil Residues Chemistry, Institute of Soils and Water, Volcani Center, Bet Dagan, Israel, Department of Chemical Physics, Weizmann Institute of Science, Rehovot, Israel
Yaron, B., Division of Soil Residues Chemistry, Institute of Soils and Water, Volcani Center, Bet Dagan, Israel
Role of water in the hydrolysis of parathion and methylparathion on kaolinite
Oven-dried kaolinite has a catalytic effect upon parathion and methylparathion hydrolysis. Addition of water to kaolinite, in the limits of sorbed water, affected the degradation kinetics of both insecticides and increased the degradation rate. A slight increase in the moisture content above that corresponding to sorbed water results in a steep decrease in the degradation rate. Following hydrolysis, part of the organophosphate hydrolysis product is fixed at the clay surface. The data obtained suggest that water molecules associated with the exchangeable cations participate in the hydrolysis.
Scientific Publication
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