diethylhydridoaluminium Property

Boiling point:

55-56°C

EPA Substance Registry System

Aluminum, diethylhydro- (871-27-2)

Safety

RIDADR 

3076

HazardClass 

4.2

PackingGroup 

I

Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Danger

Hazard statements

H250Catches fire spontaneously if exposed to air

H260In contact with water releases flammable gases which may ignite spontaneously

H314Causes severe skin burns and eye damage

Precautionary statements

P210Keep away from heat/sparks/open flames/hot surfaces. — No smoking.

P222Do not allow contact with air.

P223Keep away from any possible contact with water, because of violent reaction and possible flash fire.

P231+P232Handle under inert gas. Protect from moisture.

P260Do not breathe dust/fume/gas/mist/vapours/spray.

P264Wash hands thoroughly after handling.

P264Wash skin thouroughly after handling.

P280Wear protective gloves/protective clothing/eye protection/face protection.

P301+P330+P331IF SWALLOWED: Rinse mouth. Do NOT induce vomiting.

P302+P334IF ON SKIN: Immerse in cool water/wrap in wet bandages.

P303+P361+P353IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower.

P304+P340IF INHALED: Remove victim to fresh air and Keep at rest in a position comfortable for breathing.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

P310Immediately call a POISON CENTER or doctor/physician.

P321Specific treatment (see … on this label).

P335+P334Brush off loose particles from skin. Immerse in cool water/wrap in wet bandages.

P363Wash contaminated clothing before reuse.

P370+P378In case of fire: Use … for extinction.

P402+P404Store in a dry place. Store in a closed container.

P405Store locked up.

P422Store contents under …

P501Dispose of contents/container to..…

diethylhydridoaluminium Chemical Properties,Usage,Production

Production Methods

The ether complex of diethylaluminum chloride is prepared first by adding dropwise one-half mole of AlCl3, dissolved in some ether, to one mole of Al(C2H5) 3·O(C2H5)2. When the evolution of heat ceases, the excess solvent is evaporated, and the Al(C2H5)2Cl etherate is distilled in a vacuum. A 76 -g portion of this product is diluted with 120 ml of absolute ether and placed in a 500-ml, three-neck flask, which has been flushed with dry nitrogen. A suspension of LiH in ether (62 ml, 7 M in LiH) is prepared in a dropping funnel under a nitrogen blanket and allowed to flow into the flask. Lithium chloride separates, and the reaction mixture boils. Toward the end of the reaction, stirring is applied, and the mixture is heated to 40°C for 15 minutes. The LiCl rapidly precipitates when the flask is allowed to cool. The precipitate is washed with a small volume of ether, which is then evaporated in an aspirator vacuum, the last traces being removed at 50°C. The residual Al(C3Hs)aH is distilled in a high vacuum, holding the flask in a bath maintained at 80°C or lower. It is collected in a receiver cooled to - 20°C.