Bis(isobutyl)aluminum chloride

Synonyms

Alluminio diisobutil-monocloruro [Italian]; Aluminum, chlorobis(2-methylpropyl)-; Aluminum, chlorodiisobutyl-; Chlorobis(2-methylpropyl)aluminum; Chlorodiisobutylaluminum; Dibac; Diisobutylaluminum chloride; Diisobutylaluminum monochloride; Diisobutylchloroaluminum; [ChemIDplus] UN3052

Category

Metals, Organic Compounds

Description

Colorless liquid; [Hawley]

Sources/Uses

Used as a polymerization catalyst; [HSDB] 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, liberating extremely flammable gases; Spontaneously flammable in air; A corrosive substance that can cause injury to the skin, eyes, and respiratory tract; Inhalation may result in laryngeal edema and chemical pneumonitis; [MSDSonline] HCl released when spilled in water; [ERG 2016] 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irritants; [HSDB] Organic aluminum compounds can cause irritation or burns, depending upon concentration; [Ullmann] TLV withdrawn for aluminum alkyls because of inadequate toxicological data; [ACGIH] See "Aluminum."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."

Biomedical References

Yes

Yes

LC50 (rat) = 67 ppm

Explanatory Notes

Not TIH in land-based spills, but TiH substance released when spilled in water; [ERG 2016] The Guide in the Emergency Response Guidebook is for "Aluminum alkyl halides."

Yes

Skin burns

Diseases

Occupational diseases associated with exposure to this agent:

• Pneumonitis, toxic

Processes

Industrial Processes with risk of exposure:

• Toxic Gas from Spilling Chemical in Water