See All ProductsParaquat

Action

Herbicide

Use

May be used as a defoliant/desiccant. A postemergence, nonselective, somewhat translocated herbicide with fast-acting contact action. Harvest aid in soybeans, sugarcane, guar, and sunflowers, for pasture renovation, for use in "No-Till" or before planting or crop emergence, dormant alfalfa and clover, directed spray, and for killing potato vines. Eradication of weeds in rubber plantations, coffee plantations, and paddy bund.

Formulation

Granular, solid, soluble concentrate.

Identification

Common Names

Paraquat (ANSI, ISO, BSI, JMAF, WSSA); Paraquat Dichloride

CAS Codes

4685-14-7 (paraquat); 1910-42-5 (paraquat dichloride)

Other Code Number

SHA 061601

Chemistry

Compositions

1,1’-dimethyl-4,4’-bipyridinium ion; present as the di-chloride salt (Syngenta/Crystal) or dimethyl sulfate salt (discontinued).;

Class

Bipyridylium, dipyridylium.

Properties

Stable except under alkaline conditions. No measurable vapor pressure. Colorless crystalline solid decomposes at approximately 300°C. Sparingly soluble in lower alcohols, insoluble in hydrocarbons.

Mode of Action / Resistance Management

Chemical Group

Bipyridylium

Mode of Action

Photosystem-1-electron diversion

Action Group

HRAC Group D; WSSA Group 22

Environmental Guidelines

Hazard

Fish: Slightly toxic. Bird: Moderately toxic

Soil Particle Adsorption

Strongly absorbed and inactivated by soil particles

Water Solubility

Completely soluble

Safety Guidelines

Signal Word

DANGER-POISON

Toxicity Class

I

Toxicity

(Rat): Oral LD50 157 mg/kg

Handling/Storage Caution

Store above 32°F

Protective Clothing

Chemical-resistant gloves. Protective eyewear.

Emergency Guidelines

First Aid

Get medical aid. Eyes: immediately flush with water for at least 15 minutes. Skin: wash with soap and water. Remove and wash all contaminated clothing with soap and hot water before reuse. Inhalation: immediately get away from spray mist. Ingestion: induce vomiting by inserting finger in throat. Administer fluids and induce further vomiting. Prompt treatment is essential and must be initiated before signs and symptoms of injury appear