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 300oC, 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.
REGISTRATION NO.:LS 95479
LICENSE NO.:HNP42027-C0146
QUALITY STANDARD NO.:Q/STN001-94
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 |
|
