Agent Name

Chlorodiethylaluminum

CAS Number

96-10-6

Formula

C4-H10-Al-Cl

Major Category

Metals

Synonyms

Aluminum diethyl monochloride; Aluminum, chlorodiethyl-; Aluminum, dichlorotetraethyldi-; DEAK; Deac; Diethylaluminium chloride; Diethylaluminum monochloride; Diethylchloroaluminum; [ChemIDplus]

Category

Metals, Organic Compounds

Description

Colorless liquid (will ignite spontaneously in air); [Hawley]

Sources/Uses

Used as a catalyst for thermoplastic polymers and an intermediate for organometallic compounds; [Hawley] Used as military incendiary agent; [Sullivan, p. 979] Organic aluminum compounds are "some of the most important, highest volume, highest value organometallic compounds in production." [Ullmann]

Comments

Aluminum alkyl halides release large amounts of HCl when spilled in water; [ERG 2016] Reacts violently with water and air; Decomposition products include flammable vapors, HCl, AlCl3, and aluminum containing dust; Causes thermal burns to skin and eyes; Inhalation can cause pulmonary edema; [CHEMINFO MSDS] Organoaluminum compounds are corrosive; Harmful if absorbed through the skin or inhaled; The butyl alkyls and below are pyrophoric; Aluminum alkyls are eye irritants; [HSDB] Organic aluminum compounds can cause irritation or burns, depending upon concentration; [Ullmann] TLV withdrawn for aluminum alkyls because of inadequate toxicological data; [ACGIH] See "Aluminum." See "ORGANOMETALS."

Exposure Assessment
TIH

Yes

Dangerous When Wet

Yes - A material that, by contact with water, is liable to become spontaneously flammable or to give off flammable or toxic gas at a rate greater than 1 L per kilogram of the material, per hour; [ERG 2004]

Vapor Pressure

0.17 mm Hg

Lethal Concentration

LC50 (rat) = 11,000 mg/m3

Explanatory Notes

TLV withdrawn in 2008 with adoption of "Aluminum metal and insoluble compounds"; TLV not recommended for soluble nor for alkyl Al compounds; [ACGIH] Not TIH in land-based spills, but TiH substance released when spilled in water; [ERG 2016]

Adverse Effects
Toxic Pneumonitis

Yes

Dermatotoxin

Skin Burns

Links to Other NLM Databases
Health Studies

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Toxicity Information

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Chemical Information

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