Action / Use ACTION: Acaricide/Miticide; Insecticide. USE: For use on cereals, cotton, forests, fruits, rice, and vegetables. Fly and mosquito sprays for farms. Sumithion* for locust and grasshopper. FORMULATIONS: Dust, emulsifiable concentrate, flowable, fogging concentrate, granules, oil-based liquid spray, ULV, wettable powder. PREMIX PARTNERS: lambda-Cyhalothrin; Cypermethrin; Dimethoate; Esfenvalerate; Fenobucarb; Fenpropathrin; Fenvalerate; Methabenzthiazuron; Tetramethrin; Trichlorfon.
Identification
COMMON NAME: Fenitrothion (ISO, BSI, ESA, BAN); MEP (JMAF).
Chemistry
COMPOSITION: O,O-dimethyl O-(3-methyl-4-nitrophenyl) phosphorothioate((1). CLASS: Organophosphate. PROPERTIES: Yellowish-brown oily liquid. Specific gravity 1.328. Melting point 3.4℃. Vapor pressure 1.5 x 10-6 mbar at 20℃ Readily soluble in dichloromethane, 2-propanol, toluene. Hardly soluble in n-hexane.
Environmental Guidelines
HAZARDS: Fish: LC50 1.7 ppm (96 h) (brook trout); 3.8 ppm (bluegill). Bird: Oral 23.6 mg/kg (quail); 1190 mg/kg (mallard). SOIL PARTICLE ADSORPTION: Preliminary data indicates degrades fairly rapidly in soil with half-life of greater than a week in non-sterile muck, sandy loam soils. Intermediately mobile in variety of soils ranging from sandy loam to clay. WATER SOLUBILITY: Nearly insoluble.
Safety Guidelines
TOXICITY: (Rat): Oral LD50 approx. 250 mg/kg; Dermal LD50 approx. 2500 mg/kg. Sumithion*: (Rat, female): Oral LD50 800 mg/kg; Dermal LD50 1200 mg/kg. HANDLING/STORAGE: Store in original container, preferably in a locked area, away from children, food, feed. Do not heat above 55℃. Decomposes rapidily above 120℃, explosion may be induced.
Fenitrothion