| Common name |
Paraquat |
|
Product category
|
Herbicide |
| ChemicalName |
1,1'-dimethyl-4,4'-bipyridinium dichloride |
| CAS |
2074-50-2 |
| Structure |
 |
| Molecular Formula |
C12H14Cl2N2 |
| Physical and Chemical Properties |
Colourless, hygroscopic crystals. M.p. Decomposes at c. 340 oC V.p. <1 ? 10-2 mPa (25 °C) KOW logP = -4.5 (20 °C) Henry <4 ? 10-9 Pa m3 mol-1 (calc.) S.g./density 1.24-1.26 (20 oC) Solubility In water c. 620 g/l (20 oC). Practically insoluble in most organic solvents. Stability Stable in neutral and acidic media, but readily hydrolysed in alkaline media.
|
| Prevention Object |
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. |
| Toxicity |
Oral LD50 values of 110 to 150 mg/kg in rats, 50 mg/kg in monkeys, 48 mg/kg in cats, and 50 to 70 mg/kg in cows. The dermal LD50 in rabbits is 236 to 325 mg/kg, indicating moderate toxicity by this route
|
| Formulations |
20%SL.42%SL |
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