Chemical Name: 1,1'-dimethyl-4,4'-bipyridinium

Formula: C₁₂H₁₄N₂

Molecular weight: 257.2

CAS No.: 4685-14-7

Appearance: colourless,hygroscopic crystals.

Melting Point: decomposing at 300°C.

Vapour Pressure: Negligible.

Stability: 700,000 mg/L in water at 25°C 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: Oral LD₅₀ 150 mg/kg, dermal LD₅₀ ( rabbits) is greater than 236-325 mg/kg.

Specification: 42%TC,20%SL,24%EC

Uses: paraquat is quick touch-killing herbicide then lose activity in earth and without leaving toxicity in the soil. Widely applied to the weeding in gardens and woods. Also applied to cotton, sunflowers, soybeans etc.The controlling indexes of Paraquat Technical Concentrates.

Paraquat is a herbicide that is widely used to weed the garden, the crop field and the vegetable planting. It can kill the ruderal without farming and used in grassveld renewal, chemical weed eradication on non cropland. It is used in the stimulation of fade in cotton, heliotrope, soybean and haricot bean, etc.