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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)

Influence of clay minerals on the hydrolysis of carbamate pesticides.

Using batch experiments, we investigated the influence of clay minerals (montmorillonite, beidellite, illite, and vermiculite) on the hydrolysis of five carbamate pesticides: carbosulfan, carbofuran, aldicarb, pirimicarb, and chlorpropham. Compared to the other minerals, montmorillonite had the strongest influence on the hydrolysis of these carbamates. Montmorillonite enhanced the hydrolysis of carbosulfan and aldicarb. In contrast, the hydrolysis of chlorpropham was inhibited by montmorillonite, probably because of its strong adsorption on montmorillonite. The hydrolysis of pirimicarb was not affected by montmorillonite. The presence of organic substances, phosphate, and fluoride in suspensions decreased the catalytic activity of montmorillonite. Surface acidity of montmorillonite and/or formation of surface chelates are probably the key factors of surface catalysis in the case of the hydrolysis of carbosulfan.[1]


  1. Influence of clay minerals on the hydrolysis of carbamate pesticides. Wei, J., Furrer, G., Kaufmann, S., Schulin, R. Environ. Sci. Technol. (2001) [Pubmed]
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