Methyl tert-pentyl ether

  • Butane, 2-methoxy-2-methyl
  • 2-Methoxy-2-methylbutane
  • 1,1-Dimethylpropyl methyl ether
  • t-Amyl methyl ether
  • Methyl tertiary amyl ether
  • TAME (ether)
Formula
C6H14O
Structure
Description
Clear, colorless liquid.
Uses
Fuel additive for gasoline.

Registry Numbers and Inventories.
CAS
994-05-8
EC (EINECS/ELINCS)
213-611-4
EC Class
highly flammable, harmful
R 11 22
S 9 16 33
RTECS
EK4421000
RTECS class
Reproductive Effector; Primary Irritant
UN (DOT)
1993
Merck
12,654
Beilstein/Gmelin
1731452
Beilstein Reference
4-01-00-01671
Canada DSL/NDSL
DSL
US TSCA
Listed
Korea ECL
Listed

Properties.
Formula
C6H14O
Formula mass
102.07
Boiling point, °C
85
Vapor pressure, mmHg
75 (25 C)
Critical temperature
258
Critical pressure
30.3
Density
0.771 g/cm3 (20 C)
Solubility in water
Slightly soluble
Surface tension
22.6 g/s2 (24 C)
Refractive index
1.3855 (20 C)
Partition coefficient, pKow
1.68
Heat of vaporization
33.4 kJ/mol
Heat of combustion
-4020 kJ/mol

Hazards and Protection.
Storage
Keep away from sources of ignition. Store in a cool, dry place. Store in a tightly closed container. Flammables-area.
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 safety goggles, protective clothing and gloves.
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
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 under normal temperatures and pressures.
Incompatibilities
Keep away from strong oxidizing agents.

Fire.
Flash Point,°C
-11
Autoignition, °C
415
Upper exp. limit, %
7.1
Lower exp. limit, %
1.0
Fire fighting
Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. In case of fire, use water, dry chemical, chemical foam, or alcohol-resistant foam. Use agent most appropriate to extinguish fire.
Fire potential
Flammable Liquid.
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
May cause irritation.
   Skin
May cause irritation.
   Eyes
May cause irritation.

First aid
 
   Ingestion
If victim is conscious and alert, give 2-4 cupfuls of milk or water. Get medical aid. Do NOT induce vomiting. Allow the victim to rinse his mouth and then to drink 2-4 cupfuls of water, and seek medical advice
   Inhalation
Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid.
   Skin
Get medical aid. Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes. Remove contaminated clothing and shoes.
   Eyes
Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower lids. Get medical aid immediately.

Transport.
UN number
1993
Response guide
Hazard class
3
Packing Group
I; II; III
 
USCG CHRIS Code
AYE
 
HS Code
2909 19 00
 
IMO Chemical Code
17
IMO Pollution Category
C
IMO Hazard code
P