DICHLORVOS( 98TC,95TC,80 EC,50EC )

COMMON NAME:Dichlorvos
CHEMICAL NAME:2,2-dichlorovinyl dimethyl phosphate
STRUCTURAL FORMULA:

PHYSICAL AND CHEMICAL PROPERTIES:It is a light-yellow or yellowish brown transparent and volatile liquid with a slight aromatic odour,b.p.74oC(1mmHg),d420 1.42.The solubility in water is 1%, it is soluble in most organic solvents; easily hydrolyzes in alkaline solutions; corrosive to iron or soft steel.
TOXICITY: Acute oral LD50 to rats is 56-108mg/kg, acute dermal LD50 to rats is 75-210 mg/kg.
SPECIFICATION AND FORMULATION:

  Technical 80EC
Dichlorvos content % (m/m) 95.0 min 77.5 min
Acidity(as H2SO4),%(m/m) 0.2 max 0.2 max
Moisture,%(m/m) 0.1 max 0.1 max
Trichlorphon content %(m/m) 2.5 max  
Emulsion stability   qualified

PACKING:Iron drums with inside surface coated by anti-corrosive paint,200kg net each (for Technical).1 liter×12 bottles/case, 0.5 liter×20 bottles/case (for 80 EC)or according to customers' requirement.
REGISTRATION NO.:Technical, PD85104-3, China; 80EC, GB2548-93,China.
LICENSE NO.:80EC,XK 13-108-0077,China.
QUALITY STANDARD NO.:Technical, GB2549-81,China; 80EC, GB2548-93,China.
USES:Dichlorvos is strong poisonous to pests with stomach poisoning, contact poisoning and fumigation action.It is mainly used on cotton, fruit trees, vegetable, sugarcane, tobacco, tea, mulberry for controlling pests, it can also be used for public health and grain storage pests controlling.
PRECAUTION:
1.To avoid phytotoxicity,don't use dichlorvos on Chinese rose and sorghum.it is also sensitive to the emergence of corn and melon. The dilution times should be more than 800, it is better to have a test before using.
2.The dilution of technical grade diluted with diesel should be used up in one day.
3.It can't be mixed with alkaline solution.
4.The standard of safely using 80% dichlorvos on tea and vegetable has been made in China:

Crop common rate and max rate and method max times of safety
  diluting times diluting times of use application interval
vegetable 1500 g/ha,1500 3000g/ha,500 spraying 5 5 days min
tea 2250 g/ha,1500 3750g/ha,1500 spraying 1 6 days min

THE SCALE,METHOD AND DOSAGE OF APPLICATION (10 EC)

Crops Insects recommendatory rate method of application
cotton leaf caterpillars,aphids 50-1500g/ha water,2000 times,spraying
wheat aphid,armyworm 750g/ha water,1500 times,spraying
tea leafminer 750g/ha water,1500 times,spraying
vegetable cabbage worms 750g/ha water,1500 times,spraying
apple aphid,codling moth   water,2000 times,spraying
(warehouse) various pests 0.5-0.6g/m3 fumigating or spraying
(health) various pests 0.1g/m3 fumigating or spraying

 

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