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. |