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Dichlorvos CAS 62-73-7 is also known as its chemical name O, O-dimethyl-O-(2,2-dichlorovinyl)phosphate with molecular formula C4H7Cl2O4P. Dichlorvos includes technical and EC formulation. It is Medium toxic, to technical grade, acute oral LD50 for female rats 50mg/kg, for male rats 80mg/kg acute dermal LD50 for female rats 75 mg/kg, for male rats 107mg/kg; The dosage of no effect level for male rats is 1000ppm, To 80% EC formulation acute oral LD50 for male mice 227mg/kg. It is widely used for insects control in many crops or plants.
Specification
1. Tech grade
Appearance Yellow to brown liquidDichlorvos content ,%w/w ≥ 97.0
Trichlorphon content ,%w/w ≤ 2.5
Moisture ,%w/w ≤ 0.05Acidity(calculated as H2SO4), % W/W ≤ 0.20
2. 80%EC formulation
Appearance Yellow to brown liquid
Dichlorvos content ,%w/w ≥ 77.5
Moisture, % w/w ≤ 0.1
Acidity(calculated as H2SO4), % W/W ≤ 0.3
Emulsion stability (diluted to 200times) qualifiedApplication method
Crop Pest Rate (a.i.g/ha) Method of application
Cotton cotton aphid 600-1200g/ha SprayingWheat army worm, aphid 600g/ha Spraying
Greens cabbage worm etc. 600g/ha Spraying
Tea trees leafeating insect 600g/ha Spraying
Mulberry trees mulberry geometrid 600g/ha Spraying