Supplier Product Identification Physical and Chemical Properties First Aid Measures Handling and Storage Hazards Identification Exposure Controls/Personal Protection Fire Fighting Measures Accidental Release Measures Stability and Reactivity
Home > 1,1'-Dimethyl-4,4'-bipyridinium > 1,1'-Dimethyl-4,4'-bipyridinium(4685-14-7)

1,1'-Dimethyl-4,4'-bipyridinium(4685-14-7)

Supplier Product Identification Physical and Chemical Properties First Aid Measures Handling and Storage Hazards Identification Exposure Controls/Personal Protection Fire Fighting Measures Accidental Release Measures Stability and Reactivity

Product Identification

Product Name
1,1'-Dimethyl-4,4'-bipyridinium
Synonyms
4,4'-Bipyridinium, 1,1'-dimethyl-
Dextrone
Esgram
N,N'-Dimethyl-4,4'-Bipyridinium
N,N'-Dimethyl-gamma,gamma'-dipyridylium
Weedol
CAS
4685-14-7
Formula
C12H14N2
Molecular Weight
186.12
EINECS
225-141-7
RTECS
DW1960000
RTECS Class
Agricultural Chemical and Pesticide; Mutagen; Human Data
Merck
12,7165
Beilstein/Gmelin
3590305
EC Index Number
613-006-00-9

Physical and Chemical Properties

Appearance
Colorless solid. Odorless.
Solubility in water
soluble
Boiling Point
169-170 (1.0 torr)
Density
1.24 g/cm3 (20 C) (diC)hloride)
Partition Coefficient
-4.22 at pH 7.4
Usage
Herbicide.

First Aid Measures

Ingestion
The possible benefit of early removal of some ingested material by cautious gastric lavage must be weighed against potential complications of bleeding or perforation. Activated charcoal activated charcoal binds most toxic agents and can decrease their systemic absorption if administered soon after ingestion. Activated charcoal: administer charcoal as a slurry (240 ml water/30 g charcoal). Usual dose: 25 to 100 g in adults/adolescents.
Inhalation
There have been no substantiated cases of paraquat poisoning due to inhalation of fumes. Inhalation of spray mist does occur, but the droplets are usually large and deposit in the upper respiratory tract where they cause local irritant effects.
Skin
Remove contaminated clothing. Wash exposed area with soap and water. If symptoms persist, seek medical attention. Launder clothing before reuse.
Eyes
Irrigate exposed eyes with copious amounts of tepid water for at least 15 minutes. If irritation, pain, swelling, lacrimation, or photophobia persist, the patient should be seen in a health care facility.

Handling and Storage

Storage
Keep in a cool, dry, dark location in a tightly sealed container or cylinder. Keep away from incompatible materials, ignition sources and untrained individuals. Secure and label area. Protect containers/cylinders from physical damage.
Handling
All chemicals should be considered hazardous. Avoid direct physical contact. Use appropriate, approved safety equipment. Untrained individuals should not handle this chemical or its container. Handling should occur in a chemical fume hood.

Hazards Identification

Inhalation
Progressive pulmonary fibrosis associated with dyspnea and pulmonary edema may occur 3 to 14 days following exposure to paraquat. Pulmonary hemorrhage may occur with acute exposure.
Skin
Dermatitis associated with dry and cracking skin may occur following dermal exposure. Nail atrophy may be noted. Paraquat is well absorbed through abraded or injured skin and dermal exposure may result in severe systemic toxicity and death.
Eyes
Protracted opacification of the cornea may result following eye exposure. Paraquat is a mucosal irritant; epistaxis and sore throat may develop after inhalation.
Ingestion
Nausea, vomiting, diarrhea, and abdominal pain are common.

Exposure Controls/Personal Protection

Personal Protection
Employees should be provided with and required to use impervious clothing, gloves, face shields (eight-inch minimum), and other appropriate protective clothing necessary to prevent skin contact with paraquat or solutions containing paraquat. Employees should be provided with and required to use dust-and splash-proof safety goggles where paraquat or solutions containing paraquat may contact the eyes.
Respirators
Use NIOSH/MSHA approved respirator appropriate for exposure of concern.
Exposure Effects
Abnormally low blood pressure may develop after large ingestion. Lethargy, headache and malaise may occur initially. Cerebral edema may occur. Adverse reproductive effects have been observed in humans and experimental animals after ingestion of paraquat.
Exposure limit(s)
IDHL: 1.5 mg/m3

Fire Fighting Measures

Fire Fighting
Respirator selection for
Fire Potential
Non-flammable in aqueous formulations.

Accidental Release Measures

Small spills/leaks
Evacuate area and ventilate. Wear protective equipment. If required, use an inert absrobent. Sweep up and place in an appropriate container for disposal. Wash contaminated surfaces.

Stability and Reactivity

Stability
No data.
Incompatibilities
Paraquat is incompatible with alkylarylsulfonate wetting agents. Avoid contact with strong oxidizers.
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