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Chemistry Identity:
Common Name: Paraquat (BSI, E-ISO, (m) F-ISO, ANSI, WSSA, JMAF)
CAS No.: 4685-14-7
CAS Name: 1,1' -dimethyl-4,4' -bipyridinium
Molecular Formula: C12H14N2
Agrochemical Type: Herbicide, bipyridylium
Mode of Action: Broad-spectrum, non-residual activity with contact and some desiccant action. Photosystem I (electron transport) inhibitor. Absorbed by the foliage, with some translocation in the xylem.
Technical Sheet:
| Specification for Paraquat 42% TK |
| ITEMS |
STANDARDS |
| Appearance |
Homogeneous liquid |
| Content |
≥42 % |
| Water insolubles |
≤0.5% |
| pH |
2~6 |
| Free 4,4'-bipyridyl |
≤0.1% |
| Specification for Paraquat 20% SL |
| ITEMS |
STANDARDS |
| Appearance |
Homogeneous, dark blue to green liquid |
| Content of a.i. |
≥20% |
| Water insolubles |
≤0.3% |
| pH |
4.0~7.0 |
| Free 4,4'-bipyridyl |
≤0.1% |
| Solution stability (as 5% aqueous solution) |
No color change; |
| Sediment maxium: trace; |
| Solid particles: pass throug 45μm sieve. |
| Stability at 0ºC |
The volume of solid and/or liquid which separates shall not be more than 0.3 ml. |
Application:
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. For control of annual weeds, applied at 0.4-1.0 kg/ha.
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