Bis(isobutyl)aluminum chloride

Agent Name
Bis(isobutyl)aluminum chloride
CAS Number
1779-25-5
Formula
C8-H18-Al-Cl
Major Category
Metals
Bis(isobutyl)aluminum chloride formula graphical representation
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irritants; [HSDB] Organic aluminum compounds can cause irritation or burns, depending upon concentration; [Ullmann] TLV withdrawn for aluminum alkyls because of inadequate toxicological data; [ACGIH] See "Aluminum."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

Exposure Assessment

TIH
Yes
Dangerous When Wet
Yes
Lethal Concentration
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."

Adverse Effects

Toxic Pneumonitis
Yes
Dermatotoxin
Skin burns

Diseases, Processes, and Activities Linked to This Agent

Diseases

Occupational diseases associated with exposure to this agent:

Processes

Industrial Processes with risk of exposure: