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    Herbicide
    Position :玩时时彩月入100万大神> Product > Pesticides > Herbicide
    Oxyfluorfen 95TECH 24EC
     
    IDENTIFICATION
    Common name: Oxyfluorfen
    Other name: oxyfluorfen (BSI, E-ISO, ANSI, WSSA); oxyfluorfene ((m) F-ISO)
    Iupac name: 2-chloro-α,α,α-trifiuoro-p-tolyl-3-ethoxy-4-nitrophenyl ether Chemical Abstracts name 2-chloro-1-(3-ethoxy-4- nitrophenoxy)-4-(trifluoromethyl)benzene
    Chemical abstracts name: [42874-03-3]
    Type: Herbicide
    M.F.: C15H11ClF3NO4
    Mol Wt: 361.7
    PHYSICAL CHEMISTRY
    Form (appearance): Orange, crystalline solid.
    M.P.: 85-90℃; (tech., 65-84℃)
    B.P.: 358.2℃ (decomp.)
    V.P.: (pure a.i.) 0.0267 mPa (7-5℃)
    S.G.: 1.35 (73℃)
    Solubility.: In water 0.116 mg/l (25℃). Readily soluble in most organic solvents, e.8. acetone 72.5, cyclohexanone, isophorone 61.5, dimethylformamide >50, chloroform 50-55, mesityl oxide 40-50 (all in g/100 g, 25℃).
    Stability: No significant hydrolysis in 28 d at pH 5-9 (25℃). Decomposed rapidly by u.v. irradiation; UT50 3 d (room temperature). Stable up to 50℃.
    KowlogP: 4.47
    APPLICATION
    Formulation types: EC; GR.
    Biochemistry: Protoporphyrinogen oxidase inhibitor.
    Mode of action: Selective contact herbicide, absorbed more readily by the foliage (and especially the shoots) than by the roots, with very little translocation.
    Uses: Control of annual broad-leaved weeds and grasses in a variety of tropical and subtropical crops, by pre- or post-emergence application at rates in the range 0.25-2.0 kg a.i./ha. Particular crops include tree fruit (including citrus), vines, nuts, cereals, maize, soya beans, peanuts, rice, cotton, bananas, peppermint, onions, garlic, ornamental trees and shrubs, and conifer seedbeds.
    Phytotoxicity: Soya beans and cotton may be injured by contact with oxyfiuorfen.
    MAMMALIAN TOXICOLOGY
    Oral: Acute oral LD50 for rats and dogs >5000 mg/kg.
    Skin and eye: Acute percutaneous LD50 for rabbits >10000 mg/kg. Mild to moderate eye irritant; mild skin irritant (rabbits).
    Inhalation: LC50 >5.4 mg/l.
    Noel: In chronic dietary trials, NOEL for rats 40, dogs 100, mice 2 mg/kg diet.
    ADI: 0.003 mg/kg.
    Toxicity: WHO (a.i.) III (Table 5); EPA (formulation) IV
    ECOTOXICOLOGY
    Birds: Acute LD50 for bobwhite quail >2150 mg/kg. Dietary LC50 (8 d) for mallard ducks and bobwhite quail >5000 ppm.
    Fish: LC50 (96 h) for bluegill sunfish 0.2. trout 0.41, channel catfish 0.4 mg/l.
    Daphnia: LC50 (48 h) 1.5 mg a.i./l.
    Worms: Bees Not toxic to honeybees at 0.025 mg a.i./bee.
    ENVIRONMENTAL FATE
    Plant: Not readily metabolised in plants.
    Animals: For details of metabolism, see I. L. Adler et al., J. Agric. Food Chem., 1977, 25, 1339.
    Soil/Environment: Strongly adsorbed on soil, not readily desorbed, and shows negligible leaching. Koc from 2891 (sand) to 32381 (silty clay loam). Photodecomposition in water is rapid, and on soil is slow. Microbial degradation is not a major factor. Field dissipation DT50 5-55 d; soil DT50 (in dark) (aerobic) 292 d, (anaerobic) c. 580 d.
     
     
     
     
     
     
     
     
     
     
     
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  • 具奋垄断因素的市场经济是变种的市场经济,这种市场经济不可能实现资源合理配置,只会造成畸形发展,导致社会经济的恶性病变。房地产市场现状是最好例证。 2019-03-18
  • 和“看着就想笑”说说你的“8421” 2019-03-18
  • 紫光阁中共中央国家机关工作委员会 2019-03-17
  • “创新从来都是九死一生”(人民论坛) 2019-03-17
  • 男子聚餐喝啤酒不喝白酒 被朋友认为不给面子殴打 2019-03-13