KMID : 0903519900330040315
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Journal of the Korean Society of Agricultural Chemistry and Biotechnology 1990 Volume.33 No. 4 p.315 ~ p.318
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A new formulation method of small amount wettable powders for pesticide screening
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Abstract
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After technical pesticides and dispersants were dissolved in a volatile organic solvent, the wettable powders(WP¢¥s) were formulated by adsorbing the pesticide-dispersant solution to finely powdered porous synthetic silica without milling process. The median sizes of 11 WP¢¥S were smaller than 8§, 9 of which had more than 80 % suspensibility after 2 hours. It was possible to formulate 50% WP for liquid of jelly technical pesticides. The pesticidal efficacies of WP¢¥s tested were comparable to commercial formulations regardless of suspensibilities of WP¢¥s.
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