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INTERACTION OF BTPYRIDYLIUM HERBICIDES WITH ORGANO‐CLAY COMPLEX
Author(s) -
KHAN S. U.
Publication year - 1973
Publication title -
journal of soil science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.244
H-Index - 111
eISSN - 1365-2389
pISSN - 0022-4588
DOI - 10.1111/j.1365-2389.1973.tb00761.x
Subject(s) - diquat , paraquat , adsorption , chemistry , clay minerals , inorganic chemistry , clay soil , organic matter , environmental chemistry , organic chemistry , soil water , mineralogy , geology , soil science
Summary 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.