Agent Name

Ethylaluminum sesquichloride

CAS Number

12075-68-2

Formula

C6-H15-Al2-Cl3

Major Category

Metals

Synonyms

Aluminum, chlorodiethyl-, mixt with dichloroethylaluminum; Aluminum, dichloroethyl-, mixt with chlorodiethylaluminum; Aluminum, trichlorotriethyldi-; Ethyl aluminum sesquichloride; Sesquiethylaluminum chloride; Trichlorotriethyldialuminium; Trichlorotriethyldialuminum; Triethylaluminum sesquichloride; Triethyldialuminum trichloride; Triethyltrichlorodialuminum; [ChemIDplus]

Category

Metals, Organic Compounds

Description

Colorless liquid; [CHEMINFO MSDS]

Sources/Uses

Used as a polymerization catalyst and chemical intermediate; [Hawley] 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 2012] May cause first degree burns after short exposure and second degee burns after longer contact; [CHRIS] Hazardous decomposition products include flammable vapors, HCl, AlCl3, and aluminum containing dust; Can cause thermal burns upon contact with eyes or skin and pulmonary edema after inhalation; [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irritants; [HSDB] Organic aluminum compounds can cause irritation or burns, depending upon concentration; [Ullmann] TLV withdrawn for aluminum alkyls because of inadequate toxicological data; [ACGIH] See "Aluminum."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
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]

Explanatory Notes

VP = 2.47 mm Hg @ 60C/140F; [CHEMINFO MSDS]

Flammability (NFPA)

3: May ignite at ambient temperature

Adverse Effects
Toxic Pneumonitis

Yes

Dermatotoxin

Skin Burns

Links to Other NLM Databases
Health Studies

Human Health Effects from Hazardous Substances Data Bank:

Toxicity Information

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Chemical Information

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Related Information in HazMap
Diseases

Occupational diseases associated with exposure to this agent:

Processes

Industrial Processes with risk of exposure: