| 摘要 |
<p>1,239,060. Wettable powder pre-concentrates. FARBWERKE HOECHST A.G. 29 July, 1968 [28 July, 1967], No. 36098/68. Heading A5E. A storable wettable powder pre-concentrate comprises at least 90% by weight of a pesticidally active substance selected from pentachloronitrobenzene, linuron, monolinuron, triphenyl tin acetate, endosulfan, 3,3'-methylene-bis(tetrahydro-4,6-dimethyl-2-N-1,3,5-thiadiazine-2- thione) and binapacryl having a particle size of up to 44 Á and up to 5% by weight of a surfactant. A carrier may also be present. The pre-concentrates are prepared by wet-grinding the active substance in the presence of a surface active substance.</p> |
