Dicamba is a broad-spectrum chlorobenzoic acid herbicide used in large quantities for general weed control on grain crops, pastures and non-crop areas. Between 500 000 and 1 million kilograms of dicamba, its amine salt or its butoxyethyl ester are sold annually in Canada。
Dicamba is only slightly soluble in water, but its salts and esters are freely soluble. Its vapour pressure at 20°C is 3.9 x 10 Pa. It is stable to oxidation and hydrolysis, and it is persistent in soil, remaining three to 12 months. Dicamba is not strongly adsorbed onto soil particles and is readily leached to groundwater; it has therefore been considered a Priority A chemical with respect to potential for groundwater contamination by the U.S. Environmental Protection Agency。
Dicamba is only slightly soluble in water, but its salts and esters are freely soluble. Its vapour pressure at 20°C is 3.9 x 10 Pa. It is stable to oxidation and hydrolysis, and it is persistent in soil, remaining three to 12 months. Dicamba is not strongly adsorbed onto soil particles and is readily leached to groundwater; it has therefore been considered a Priority A chemical with respect to potential for groundwater contamination by the U.S. Environmental Protection Agency。
Yangzhou pioneer chemical CO.,LTD
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