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Paraquat methosulfate

Paraquat methosulfate
Paraquat methosulfate structure
Chemical Name:
Paraquat methosulfate
Gramoone;paraquate;PARAQUATBIS;Weedol(Chevron);Dextrone-X(ICI);Bismethyl sulfate;Paraquat methosulfate;PARAQUAT-DIMETHYLSULFATE;Gramoxone methyl sulfate;Paraquat bis(methyl sulfate).
Molecular Formula:
Formula Weight:
MOL File:

Paraquat methosulfate Properties

CAS DataBase Reference
2074-50-2(CAS DataBase Reference)


RIDADR  2781
HazardClass  6.1(a)
PackingGroup  II
Toxicity LD50 orally in male rats: 100 mg/kg (Kimbrough, Gaines)

Paraquat methosulfate price

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Paraquat methosulfate Chemical Properties,Uses,Production

Chemical Properties

Paraquat is a yellow solid with a faint, ammonia-like odor.


Herbicide. Dichloride as biological oxidation-reduction indicator.

General Description

White crystalline solid or yellow solid. Used as a contact herbicide and desiccant.

Reactivity Profile

When Paraquat methosulfate is heated to decomposition, Paraquat methosulfate emits very toxic fumes of sulfur oxides and nitrogen oxides. Avoid strong oxidizers. [EPA, 1998].

Health Hazard

Paraquat methosulfate can cause death by shock and/or pulmonary damage. The fatal dose is estimated to be 6 grams of paraquat ion. Exposure may cause renal tubular damage and liver dysfunction.

Fire Hazard

When heated to decomposition, Paraquat methosulfate emits very toxic fumes of sulfur oxides and nitrogen oxides. Avoid strong oxidizers.

Contact allergens

Paraquat is a quaternary ammonium compound with herbicide properties, as diquat. It is contained in Cekuquat? or Dipril?. It can cause contact and phototoxic contact dermatitis, acne, and leukoderma mainly in agricultural workers.

Potential Exposure

Those engaged in manufacture, formulation and application of this herbicide. Classified for restricted use: limited to use by a certified applicator, or those under applicator’s direct supervision.

First aid

If this chemical gets into the eyes, remove any contact lenses at once and irrigate immediately for at least 15 minutes, occasionally lifting upper and lower lids. Seek medical attention immediately. If this chemical contacts the skin, remove contaminated clothing and wash immediately with soap and water. Seek medical attention immediately. If this chemical has been inhaled, remove from exposure, begin rescue breathing (using universal precautions, including resuscitation mask) if breathing has stopped and CPR if heart action has stopped. Transfer promptly to a medical facility. When this chemical has been swallowed, get medical attention. Give large quantities of water, or bentonite clay in water, or activated charcoal in water; and induce vomiting. Do not make an unconscious person vomit. Medical observation is recommended for 2448 hours after breathing overexposure, as pulmonary edema may be delayed. As first aid for pulmonary edema, a doctor or authorized paramedic may consider administering a drug or other inhalation therapy. Obtain authorization and/or further instructions from the local hospital for performance of other invasive procedures. Rush to a health care facility.


UN2781 Bipyridilium pesticide, solid, toxic, Hazard Class: 6.1; Labels: 6.1-Poisonous materials.


Incompatible with oxidizers (chlorates, nitrates, peroxides, permanganates, perchlorates, chlorine, bromine, fluorine, etc.); contact may cause fires or explosions. Keep away from alkaline materials, strong bases, strong acids, oxoacids, epoxides (hydrolysis), alkylarylsulfonate wetting agents. Corrosive to metals. Decomposes in presence of ultraviolet (UV) light. Decomposes in heat (see physical properties, above) and in the presence of UV light, producing nitrogen oxides, hydrogen chloride.

Waste Disposal

Paraquat is rapidly inactivated in soil. It is also inactivated by anionic surfactants. Therefore an effective and environmentally safe disposal method would be to mix the product with ordinary household detergent and bury the mixture in clay soil. In accordance with 40CFR165, follow recommendations for the disposal of pesticides and pesticide containers. Must be disposed properly by following package label directions or by contacting your local or federal environmental control agency, or by contacting your regional EPA office. Consult with environmental regulatory agencies for guidance on acceptable disposal practices. Generators of waste containing this contaminant (≥100 kg/mo) must conform with EPA regulations governing storage, transportation, treatment, and waste disposal.

Paraquat methosulfate Preparation Products And Raw materials

Raw materials

Preparation Products

Paraquat methosulfate Suppliers

Global( 49)Suppliers
Supplier Tel Fax Email Country ProdList Advantage
Mainchem Co., Ltd.
+86-0592-6210733 CHINA 32457 55
HBCChem, Inc. +1-510-219-6317
+1-650-486-1361 United States 10667 60
Hangzhou J&H Chemical Co., Ltd. +86-0571-87396432
+86-0571-87396431 China 13902 53

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