Trimethyl aluminum

  • Aluminum, trimethyl
Formula
C3H9Al
Structure
Description
Clear, colorless liquid.

Registry Numbers and Inventories.
CAS
75-24-1
EC (EINECS/ELINCS)
200-853-0
RTECS
BD2204000
RTECS class
Other
UN (DOT)
3051
Beilstein/Gmelin
3587197
Beilstein Reference
4-04-00-04397
Swiss Giftliste 1
G-7323
Canada DSL/NDSL
DSL
US TSCA
Listed
Austrailia AICS
Listed
New Zealand
Listed
Japan ENCS (MITI)
Listed

Properties.
Formula
C3H9Al
Formula mass
72.10
Melting point, °C
0
Boiling point, °C
125
Vapor pressure, mmHg
9 (20 C)
Density
0.748 g/cm3 (20 C)
Solubility in water
Decomposes
Refractive index
1.432 (12 C)
Dipole moment
1.43 D
Heat of vaporization
40.7 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.
B6 E
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
Use a fully encapsulating, vapor protective clothing should be worn for spills and leaks with no fire. ELIMINATE all ignition sources and prevent all contact with spilled material. Stop leak if you can do it without risk. Cover with DRY earth, DRY sand, or other non-combustible material followed with plastic sheet to minimize spreading or contact with rain. Use clean non-sparking tools to collect material and place it into loosley covered plastic containers for later disposal. This is a generic DOT guideline. EXCEPTION: For Dithionite (Hydrosulfite/Hydrosulphite) spills, UN1384, UN1923 and UN1929, dissolve with 5 parts water and collect for proper disposal.
Stability
Spontaneously flammable in air.
Incompatibilities
Reacts violently with water, air and compounds with active hydrogen such as alcohols and acids.

Fire.
Flash Point,°C
-18
Fire fighting
DO NOT USE WATER, carbon dioxide OR FOAM ON MATERIAL ITSELF. It may react violently with water. Smothering may not be effect.
Fire potential
Flammable/combustible material. Spontaneously flammable in air.
Hazards
May ignite on contact with moist air or moisture. May burn rapidly with flare-burning effect. May react vigorously or explosively on contact with water. May decompose explosively when heated or involved in a fire. May re-ignite after fire is extinguished.
Combustion products
Fire will produce irritating, corrosive and/or toxic gases.
Health
3
 
Flammability
4
 
 
Reactivity
3
 
 
Special
W

Health.
Poison_Class
1
Exposure effects
The toxological properties of this substance have not been fully investigated.
   Inhalation
Inhalation of decomposition products may cause severe injury or death.
   Skin
Contact with substance may cause severe 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. In case of contact with substance, immediately flush with running water for at least 20 minutes.
   Eyes
In case of contact with substance, immediately flush with running water for at least 20 minutes.

Transport.
UN number
3051
Response guide
Hazard class
4.2
Packing Group
I