1,2-Diisopropylbenzene

  • o-Diisopropylbenzene
  • 1,2-Bis(1-methylethyl)benzene
Formula
C12H18
Structure
Description
Clear, colorless liquid.

Registry Numbers and Inventories.
CAS
577-55-9
EC (EINECS/ELINCS)
209-412-7
RTECS
CZ6350000
RTECS class
Other
UN (DOT)
3295
Beilstein/Gmelin
2212231
Beilstein Reference
4-10-00-02635
Canada DSL/NDSL
NDSL
US TSCA
Listed
Japan ENCS (MITI)
Listed

Properties.
Formula
C12H18
Formula mass
162.30
Melting point, °C
-57
Boiling point, °C
168
Density
0.8701 g/cm3 (20 C)
Solubility in water
Insoluble
Refractive index
1.4661 (25 C)

Hazards and Protection.
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.
Protection
Wear appropriate protective gloves, clothing and goggles.
Respirators
Wear positive pressure self-contained breathing apparatus (SCBA).
Small spills/leaks
Make no contact with the spilled material. ELIMINATE all ignition sources and ground all equipment. Stop leak if you can do it without risk. A vapor suppressing foam may be used to reduce vapors. Absorb or cover with dry earth, sand or other non-combustible material and transfer to containers. Use clean non-sparking tools to collect absorbed material.
Stability
No data.
Incompatibilities
Can react with oxidizing materials.

Fire.
Fire fighting
Foam, carbon dioxide, dry chemical, water spray or mist.
Fire potential
Moderate fire hazard, when exposed to heat or flame.
Hazards
Vapors may form explosive mixtures with air. Vapors may travel to source of ignition and flash back. Most vapors are heavier than air. They will spread along ground and collect in low or confined areas (sewers, basements, tanks). Vapor explosion hazard indoors, outdoors or in sewers.
Combustion products
Fire may produce irritating, corrosive and/or toxic gases.

Health.
Exposure effects
Animal studies indicate slow induction, long duration narcosis after vapor exposures. Ataxia and lethargy were noted in repeated exposure of rats and rabbits. Cumene has been reported to be teratogenic and to decrease neonatal viability in rats. It did not affect spermatogenesis in rats exposed by inhalation.
   Ingestion
Respiratory depression was noted in mice exposed to the vapors.
   Inhalation
Respiratory depression was noted in mice exposed to the vapors.
   Skin
Cumene is a primary skin irritant.
   Eyes
See Skin.

First aid
 
   Ingestion
Do not induce emesis. Activated charcoal: administer charcoal as a slurry (240 ml water/30 g charcoal). Usual dose: 25 to 100 g in adults/adolescents.
   Inhalation
Move patient to fresh air. Monitor for respiratory distress. If cough or difficulty breathing develops, evaluate for respiratory tract irritation, bronchitis, or pneumonitis. Administer oxygen and assist ventilation as required. Treat bronchospasm with beta2 agonist and corticosteroid aerosols.
   Skin
Remove contaminated clothing and wash exposed area thoroughly with soap and water. A physician should examine the area if irritation or pain persists.
   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.

Transport.
UN number
3295
Response guide
Hazard class
3
Packing Group
I; II; III
 
32. Aromatic hydrocarbons