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Paraquat (45TC,42TC,24SL,20SL)

COMMON NAME:Paraquat
CHEMICAL NAME:1,1'-dimethyl-4.4'-bipyridinium
STRUCTURE FORMULA: 

PHYSICAL AND CHEMICAL PROPERTIES:
Paraquat bdchloride forms colourless,hygroscopic crystals.decomposing at 300℃, v.p. negligible,Solu-bility,easily soluble in water,slightly soluble in short-china alcohol, practically insoluble in most other-organic solvents.stability stable in neutral and acidic media, but readily oxidized in alaline media.Tech salts are corrosive to common metals.
TOXICITY: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.
FORMULATION AND SPECIFICATION:

 

45% Tech

20 liquid

Paraquat content,%(m/m)

45.0 min As cautions

20.0 min

Stability(no crystal appear,18 hrs.)

Qualified

Qualified

PH value

4-6

4-6

PACKING:Packed as required.Usually,iron drums,100,200 kg net weight for Tech.0.5 L or 1 L PET bottle for 20 liquid.
USES:Paraquat destroys green plant tissue by contact action with some translation.It is trpidly inactivated on contact with soil,Uses include stubble cleaning,pasture renovation,weed control in plantation crops.
PRECAUTION:Incompatible with alkaline materials,anionic surfactants,and clay-containing inert materials.
THE SCALE,METHOD AND KOSAGE OF APPLICATION:(20 LIQUID)

Uses

Dosage(ma/ha)

Remark

Weed in forest (e.g.orchard,mulberry field,banana field,rubber plantation etc.)

1500-3000

Spraying times depends on the harmful of herbs in field

Weeds in the rows of crops(e.g.cotton,sugarcane,maize,vegetable etc.)

1500-3000

Don't sow umtil the fourth day afetr application

Weeds in non-planting areas (e.g.industrial areas etc.)

3000-3900

Mixing with other herbicides can obtain better effectiveness

Purify herbage

3000-5000

Control the weeds in perennial herbage

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