Detailed Product Description
Common name: chloridazon Chemical name: 5-amino-4-chloro-2-phenyl-3(2H)-pyridazinone Molecular formula: C10H8ClN3O Chemical class: pyridazinone herbicides CAS no.: 1698-60-8 Properties: Form: colorless, odorless solid Melting point: 206oC Vapour pressure: <1 x 10-2mPa Solubility in water: 0.34g/l (20oC) Solubility in solvents: ethyl acetate 3.7g/l, methanol 15.1g/l, toluene 0.1g/l, dichloromethane 1.9g/L(all at 20oC). Stability: Stable up to 50oC for ≥2 years. Stable in aqueous media at PH 3-9. Toxicity: Acute oral LD50 for rats: male 3,830mg/kg, female 2,140mg/kg Acute dermal LD50 for rats: >2,000mg/kg Inhalation LC50 for rats: 5.4mg/L No irritation to eyes and skin Non-mutagenic, non-teratogenic, non-carcinogenic Ecotoxicology: Effects on aquatic organisms: bulltrout LC50 36-42mg/l, bluegill sunlight 93mg/L (96h), daphnia EC50 132mg/L(48h), algae EC50 1.9mg/L(120h). Effects on bees: not toxic to bee, LD50 >200mg/bee (48h, oral and contact) Effects on birds: mallard ducks LD50 4260mg/kg, bobwhite quail LD50>2000mg/kg Effects on earthworms: LC50 1,050mg/kg (14d) Environmental fate: in soil, microbial degradation involves splitting off the N-glucosyl group, to give 5-amino-4-chloropyridazin-3(2H)-one, which is not herbicide-active. Persists in soil for 6-8 weeks under sufficiently moist conditions Mode of action: Selective systemic herbicide, rapidly absorbed by the roots, with translocation acropetally to all plant parts Usage: Control of annual broad-leaved weeds in sugar beet, fodder beet and beetroot, by application pre-plant incorporate, pre-emergence, or post-emergence.
查看