2,2-Dimethylpentane

  • Pentane, 2,2-dimethyl
Formula
C7H16
Structure
Description
Colorless liquid.

Registry Numbers and Inventories.
CAS
590-35-2
EC (EINECS/ELINCS)
209-680-5
EC Index Number
601-008-00-2
EC Class
Highly flammable; Harmful; Irritant; Vapours may cause drowsiness and dizziness; Dangerous for the Environment
UN (DOT)
1208
Beilstein/Gmelin
5728977
Canada DSL/NDSL
NDSL
US TSCA
Listed
New Zealand
Listed
Japan ENCS (MITI)
Listed
Korea ECL
Listed

Properties.
Formula
C7H16
Formula mass
100.20
Melting point, °C
-123.7
Boiling point, °C
79
Vapor pressure, mmHg
105 (25 C)
Critical temperature
247
Critical pressure
28.4
Density
0.674 g/cm3 (20 C)
Solubility in water
Insoluble
Viscosity
0.385 cp (20 C)
Surface tension
18.05 g/s2
Refractive index
1.3822 (20 C)
Dielectric constant
1,97 (20 C)
Partition coefficient, pKow
4.11
Heat of fusion
5.8 kJ/mol
Heat of vaporization
32.4 kJ/mol
Heat of combustion
-4806 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
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.

Fire.
Flash Point,°C
-23
Autoignition, °C
337
Upper exp. limit, %
6
Lower exp. limit, %
1
Fire fighting
Use of water spray when fighting fire may be inefficient. Small Fires: Dry chemical, carbon dioxide, water spray or alcohol-resistant foam. Large Fires: Water spray, fog or alcohol-resistant foam. Use water spray or fog; do not use straight streams.
Fire potential
HIGHLY FLAMMABLE: Will be easily ignited by heat, sparks or flames.
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
The toxological properties of this substance have not been fully investigated.
   Inhalation
Vapors may cause dizziness or suffocation. May cause irritation or burns.
   Skin
May cause irritation or burns.
   Eyes
See Skin.

First aid
 
   Ingestion
Seek medical assistance.
   Inhalation
Move victim to fresh air. Apply artificial respiration if victim is not breathing. Administer oxygen if breathing is difficult.
   Skin
Remove and isolate contaminated clothing and shoes. Wash skin with soap and water. Flush with running water for at least 20 minutes
   Eyes
Flush with running water for at least 20 minutes.

Transport.
UN number
1208
Response guide
Hazard class
3
Packing Group
II
 
USCG CHRIS Code
HXS
 
IMO Chemical Code
17
IMO Pollution Category
C
IMO Hazard code
P