1-Undecene

  • 1-Hendecene
  • alpha-Nonylethylene
  • alpha-Undecene
  • n-1-Undecene
  • alpha-Undecylene
  • Undec-1-ene
Formula
C11H22
Structure
Description
A colorless liquid with a mild odor.

Registry Numbers and Inventories.
CAS
821-95-4
EC (EINECS/ELINCS)
212-483-7
UN (DOT)
3295
Beilstein/Gmelin
1740044
Beilstein Reference
4-01-00-00910
Canada DSL/NDSL
NDSL
US TSCA
Listed
Japan ENCS (MITI)
Listed
Korea ECL
Listed

Properties.
Formula
C11H22
Formula mass
154.30
Melting point, °C
-48.9
Boiling point, °C
193
Vapor pressure, mmHg
0.66 (25 C)
Critical temperature
365
Critical pressure
2.0
Density
0.7552 g/cm3 (20 C)
Solubility in water
insoluble
Viscosity
1.38 sq mm/sec (100 C)
Surface tension
3.15x10-2 n/m
Refractive index
1.4276 (20 C)
Partition coefficient, pKow
6.06
Heat of vaporization
54.3 kJ/mol

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
Goggles or face shield; rubber gloves.
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
Stable.
Incompatibilities
May react vigorously with strong oxidizers May react exothermically with reducing agents to release gaseous hydrogen.

Fire.
Flash Point,°C
63
Autoignition, °C
237
Upper exp. limit, %
5.6
Lower exp. limit, %
0.7
Fire fighting
Fire Extinguishing Agents Not to Be Used: Water may be ineffective.Fire Extinguishing Agents: Foam, dry chemical, or carbon dioxide
Fire potential
Quite flammable.
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
-19.084 btu/lb

Health.
Exposure effects
Mild central nervous system depression or excitation may occur after ingestion or vapor inhalation. CNS effects can occur secondary to hydrocarbon pneumonitis and hypoxia, or from additives and contaminants (aniline, heavy metals, camphor, or pesticides). Some hydrocarbons are simple asphyxiants (e.G., Methane, ethane, propane gasses) which can produce CNS effects secondary to hypoxia. In a prospective study in Toronto, major congenital malformations were noted in 13 of 125 fetuses of mothers exposed to organic solvents during pregnancy.
   Ingestion
Nausea, vomiting, diarrhea, and abdominal pain may occur following ingestion.
   Inhalation
Coughing, choking, tachypnea, dyspnea, cyanosis, rales, hemoptysis, pulmonary edema, pneumatoceles, lipoid pneumonia, or respiratory arrest may develop following ingestion and aspiration.
   Skin
May cause irritation or burns.
   Eyes
See Skin.

First aid
 
   Ingestion
Do NOT lavage or induce vomiting; give vegetable oil and demulcents; call a doctor.
   Inhalation
Remove victim to fresh air.
   Skin
Wipe off, wash with soap and water.
   Eyes
Flush with water for 15 min.

Transport.
UN number
3295
Response guide
Hazard class
3
Packing Group
I; II; III
 
USCG CHRIS Code
UDC
 
IMO Chemical Code
17
IMO Pollution Category
B
IMO Hazard code
P