Undecane

  • Hendecane
Formula
CH3(CH2)9CH3
Structure
Description
Colorless liquid with a gasoline-like odor.
Uses
Petroleum research, organic synthesis, distillation chaser.

Registry Numbers and Inventories.
CAS
1120-21-4
EC (EINECS/ELINCS)
214-300-6
EC Class
harmful
S 23.2 24 62
RTECS
YQ1525000
RTECS class
Drug
UN (DOT)
2330
Beilstein/Gmelin
1697099
Beilstein Reference
4-01-00-00487
Swiss Giftliste 1
G-3037
Canada DSL/NDSL
DSL
US TSCA
Listed
Austrailia AICS
Listed
New Zealand
Listed
Japan ENCS (MITI)
Listed
Korea ECL
Listed

Properties.
Formula
C11H24
Formula mass
156.31
Melting point, °C
-26.7
Boiling point, °C
196
Vapor pressure, mmHg
0.56 (25 C)
Vapor density (air=1)
5.4
Saturation Concentration
520 ppm (0.052%) at 25 C (calc.)
Critical temperature
4944
Critical pressure
4472.63
Density
0.7416 g/cm3 (20 C)
Solubility in water
Insoluble
Viscosity
1.08 cp (25 C)
Surface tension
19.23 g/s2 (80 C)
Refractive index
1.4164 (20 C)
Partition coefficient, pKow
6.60
Heat of fusion
21.4 kJ/mol
Heat of vaporization
41.5 kJ/mol
Heat of combustion
-7437 kJ/mol

Hazards and Protection.
Storage
Keep away from heat, sparks, and flame. Keep away from sources of ignition. Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances.
B3 D2B
Handling
Wash thoroughly after handling. Use with adequate ventilation. Avoid contact with eyes, skin, and clothing. Keep container tightly closed. Avoid contact with heat, sparks and flame. Avoid ingestion and inhalation.
Protection
Eyes: Wear appropriate protective eyeglasses or chemical safety goggles as described by OSHA's eye and face protection regulations in 29 CFR 1910.133 or European Standard EN166. Skin: Wear appropriate protective gloves to prevent skin exposure. Clothing: Wear appropriate protective clothing to prevent skin exposure.
Respirators
Follow the OSHA respirator regulations found in 29CFR 1910.134 or European Standard EN 149. Always use a NIOSH or European Standard EN 149 approved respirator when necessary.
Small spills/leaks
Absorb spill with inert material, (e.g., dry sand or earth), then place into a chemical waste container. Remove all sources of ignition.
Disposal code
1
Stability
No data.
Incompatibilities
Bases, oxidizing agents, reducing agents.
Decomposition
Carbon monoxide, carbon dioxide.

Fire.
Flash Point,°C
60
Autoignition, °C
240
Upper exp. limit, %
6.5
Lower exp. limit, %
0.6
Fire fighting
Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. Combustible Liquid. Extinguishing media: For large fires, use water spray, fog, or alcohol-resistant foam. For small fires, use water spray, dry chemical, carbon dioxide or chemical foam.
Fire potential
HIGHLY 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. May polymerize explosively when heated or involved in a fire. Runoff to sewer may create fire or explosion hazard. Containers may explode when heated. Many liquids are lighter than water. Substance may be transported hot.
Combustion products
Fire may produce irritating, corrosive and/or toxic gases.
Health
1
 
Flammability
2
 
 
Reactivity
0
 

Health.
Poison_Class
-
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
Aspiration hazard. May cause irritation of the digestive tract. Direct aspiration into the lungs may cause chemical pneumonitis, pulmonary edema, and hemorrhaging.
   Inhalation
May cause respiratory tract irritation.
   Skin
May cause skin irritation.
   Eyes
May cause eye irritation.

First aid
 
   Ingestion
Do NOT induce vomiting. If victim is conscious and alert, give 2-4 cupfuls of milk or water. Never give anything by mouth to an unconscious person. Get medical aid.
   Inhalation
Remove from exposure to fresh air immediately. Get medical aid.
   Skin
Get medical aid if irritation develops or persists. Flush skin with plenty of soap and water.
   Eyes
Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid.

Transport.
UN number
2330
Response guide
Hazard class
3
Packing Group
III
 
USCG CHRIS Code
PFN
 
HS Code
2901 10 90
 
Std. Transport #
4912693
 
IMO Hazard code
P