Common nameí+: Paraquat Chemical nameí+: 1,1'-Dimethyl-4,4'-bipyridinium; 1,1'-Dimethyl-4,4'-bipyridinium cation Molecular formulaí+: C12H14N2 Molecular weightí+: 186.256 CASí+: 4685-14-7 Specificationí+: Content of a.i.:min , 42%Tk,V.P. : 1X10 -9 mm Hg ,Solubility( 20ípC): 620 g/l in water, Chemical Stability: It is stable in neutral and acidic medium but unstable in alkali condition. The hydrolysis speed is greatly in fluenced by temperature and alkalinity. Photostability: Decomposed by UV radiation in aqueous solution í+Physical and chemical propertyí+: Colorless crystalline solid, Stable except under alkaline conditions. No measurable vapor pressure. Decomposes at approximately 300íµ. Sparingly soluble in lower alcohols, insoluble in hydrocarbons. í+Toxicityí+: Paraquat dihloride Acute oral LD50 for rats 150 mg/kg,for mece 104 mg/kg,for kogs 25-50 mg/kg,for sheep 70 mg/kg.Acute percutaneous LD50 for rabbits 236-500 mg paraquat ion/kg.Irritating to skin and eyes.absorption through intact human skin is minimal;exposures can cause irritation and a delay in the healing of cuts and wounds;can cause temporary damage to nails.If inhaled,may cause nose bleeding.Other has serious dealyed effects if absorbed.Fish toxicitty:TLM(48hrs.)is 62 ppm for rainbow trout,TLM(48 hrs.)is 40 ppm for carp.ADI 0.004 mg/kg b.w. í+Usesí+: A broad-spectrum,quick-acting,non-selective contact herbicide used to control weeds and grasses in many agricultural and non-agricultural areas.It is used preplant or preemergence on vegetables, grains, cotton, grasses,sugar cane, peanuts, potatoes, and tree plantation areas; postemergence around fruit crops,vegetables,trees,vines,grains,soybeans,and sugar cane;Also used for general weed control on non-crop land,and as a defoliant for cotton and hops,and for control of aquatic weeds. í+Packingí+: Technical:200kg/ Drum í+Storage and transportationí+: No smoking,food or drink in work site..do not store or transport it with food,seeds,feeds,etc.Provent from moisture, sunshine, rain or freezing. .Keep away from fire. Stored in cool, good ventilation wearhouse. Technical:200kg/ Drum
