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Diquat (Diquat dibromide)

Synonyms & Trade Names
Diquat dibromide, 1,1'-Ethylene-2,2'-bipyridyllium dibromide [Note: Diquat is a cation (C12H12N2++; 1,1'-Ethylene-2,2-bipyridyllium ion). Various diquat salts are commercially available.]
CAS No.
85-00-7
RTECS No.
JM5690000
DOT ID & Guide
2781 151(solid)
2782 131(liquid)
Formula
C₁₂H₁₂N₂Br₂
Conversion
IDLH
N.D.
See: IDLH INDEX
Exposure Limits
NIOSH REL
TWA 0.5 mg/m3
OSHA PEL
none See Appendix G
Measurement Methods
None available
See: NMAM or OSHA Methods
Physical Description
Dibromide salt: Yellow crystals. [herbicide] [Note: Commercial product may be found in a liquid concentrate or a solution.]
Molecular Weight
344.1
Boiling Point
Decomposes
Melting Point
635°F
Solubility
70%
Vapor Pressure
<0.00001 mmHg
Ionization Potential
?
Specific Gravity
1.22-1.27
Flash Point
?
Upper Exposive Limit
?
Lower Explosive Limit
?
Combustible Solid, but does not readily ignite and burns with difficulty.
Incompatibilities & Reactivities
Alkalis, UV light, basic solutions [Note: Concentrated diquat solutions corrode aluminum.]
Exposure Routes
inhalation, skin absorption, ingestion, skin and/or eye contact
Symptoms
irritation eyes, skin, mucous membrane, respiratory system; rhinorrhea (discharge of thin nasal mucus), epistaxis (nosebleed); skin burns; nausea, vomiting, diarrhea, malaise (vague feeling of discomfort); kidney, liver injury; cough, chest pain, dyspnea (breathing difficulty), pulmonary edema; tremor, convulsions; delayed healing of wounds
Target Organs
Eyes, skin, respiratory system, kidneys, liver, central nervous system
Personal Protection/Sanitation
(See protection codes)
Skin:Prevent skin contact
Eyes:Prevent eye contact
Wash skin:When contaminated
Remove:When wet or contaminated
Change:Daily
Provide:Quick drench
First Aid
(See procedures)
Eye:Irrigate immediately
Skin:Water flush immediately
Breathing:Respiratory support
Swallow:Medical attention immediately
Respirator Recommendations

Not available.

Important additional information about respirator selection

See also
INTRODUCTION   ICSC CARD: 1363

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