Degradation of carbofuran and carbofuran-derivatives in presence of humic substances under basic conditions

Jorge Morales; José A Manso; Antonio Cid; Juan C Mejuto

doi:10.1016/j.chemosphere.2012.05.018

Degradation of carbofuran and carbofuran-derivatives in presence of humic substances under basic conditions

Chemosphere. 2012 Nov;89(11):1267-71. doi: 10.1016/j.chemosphere.2012.05.018. Epub 2012 Jun 18.

Authors

Jorge Morales¹, José A Manso, Antonio Cid, Juan C Mejuto

Affiliation

¹ Department of Physical Chemistry, Faculty of Sciences, University of Vigo, 32004 Ourense, Spain.

PMID: 22717164
DOI: 10.1016/j.chemosphere.2012.05.018

Abstract

The influence of humic aggregates in water solution upon the chemical stability of carbofuran (CF) and the carbofuran-derivatives, 3-hydroxy-carbofuran (HCF) and 3-keto-carbofuran (KCF), has been investigated in basic media. An inhibition upon the basic hydrolysis of 3-hydroxy-carbofuran and 3-keto-carbofuran (≈ 1.7 and ≈ 1.5-fold, respectively) was observed and it was rationalized in terms of the micellar pseudophase model. Nevertheless, non-significant effect upon the carbofuran stability was found in the presence of humic substances. These behaviors have been compared with the corresponding ones in other synthetic colloidal aggregates.

Publication types

Research Support, Non-U.S. Gov't

MeSH terms

Carbofuran / chemistry*
Humic Substances*
Hydrolysis
Insecticides / chemistry*
Models, Chemical
Soil Pollutants / chemistry*

Substances

Humic Substances
Insecticides
Soil Pollutants
Carbofuran