INTERACTION OF BTPYRIDYLIUM HERBICIDES WITH ORGANO-CLAY COMPLEX |
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| Authors: | S. U. KHAN |
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| Affiliation: | Research Station, Canada Department of Agriculture, Box 440, Regina, Sask., Canada |
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| Abstract: | The adsorption of diquat (1,1′-ethylene-2,2′-bipyridylium dibromide) and paraquat (1, 1′-dimethyl-4,4′-dipyridylium dichloride) by an organo-clay complex has been investigated. Paraquat was adsorbed by the organo-clay complex in greater amounts than was diquat. Infrared studies suggest the formation of charge-transfer complexes between diquat or paraquat and the organo-clay complex. Organic matter upon interaction with clay may facilitate the adsorption of diquat and paraquat on clay minerals in soil. |
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