Paraquat



 Specification
 Active Ingredient

45% min., 42%min.

 Appearance

Colorless, hygroscopic crystals (pure).


 Physical and chemical properties
Chemical Name

(1,1’-dimethyl-4,4’-bipyridium ion) dichloride anion

Empirical Formula

C12H14Cl2N2

Molecular Weight

257.2

Structural Formula

  

Melting point

Decomposes at 300℃

Solubility

In water 700 g/l (20℃).  Practically insoluble in most other organic solvents.

Vapor pressure

<0.1 mPa


Formulations 

45%TC, 27.6%SL

.   
Application

Paraquat is a non-selective contact herbicide, absorbed by the foliage, with some translocation in the xylem.

Used for broad-spectrum control of broad-leaved weeds and grasses in fruit orchards (including citrus), plantation crops (bananas, coffee, cocoa palms, coconut palms, oil palms rubber, etc.), vines, olives, tea, alfalfa, onions, leeks, sugar beet, asparagus, ornamental trees and shrubs, in forestry, etc. Also used for general weed control on non-crop land; as a defoliant for cotton and hops; for destruction of potato haulms; as a desiccant for pineapples, sugar cane, soya beans, and sunflowers; for strawberry runner control; in pasture renovation; and for control of aquatic weeds.

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