Chemical name: 3,7-dichloro-8-quinolinecarboxylic acid
Other names are: Killing Killing, Killing Killing, Killing Star, Sic Bo, Facet, BAS-51406-H.
Nature: colorless crystal. Melting point 274°C. Vapor pressure < 0.01 mPa (20°C). Solubility at 20°C: Water 0.065 mg/kg (pH 7), soluble in acetone, ethanol, and ethyl acetate.
Toxicity is a low toxicity herbicide. Acute rat oral LD502680 mg/kg, rat percutaneous LD50> 2000 mg/kg. Acute inhalation LC50 (4 hours) >5.2 mg/l, fish, bees non-toxic.
Formulations 25%, 50%, 75% wettable powder. 50% soluble powder, 50% water dispersible granules, 25%, 30% suspension, 25% effervescent granules.
Residues in the soil are mainly through photolysis and degradation of microorganisms in the soil.
Scope of application Mainly used for rice field flood control grass. Can also prevent rain long flower, Sesbania, cress, duckweed, saponin.