Agent Name

Aluminum chloride

CAS Number

7446-70-0

Formula

Al-Cl3

Major Category

Metals

Synonyms

Aluminium trichloride; Aluminium, (chlorure d') [French]; Aluminiumchlorid [German]; Chlorure d'aluminium [French]; Trichloroaluminum; [ChemIDplus] UN1726;

Category

Metals, Inorganic Compounds

Description

White crystals or powder with strong odor of hydrogen chloride; [HSDB] Pure material is deliquescent solid. Commercially available as anhydrous, the hexahydrate and as 16.5%, 28%, and 80% solutions; [CHEMINFO]

Sources/Uses

Used as a catalyst and chemical intermediate; Aluminum chloride hexahydrate is used to preserve wood, to disinfect stables and slaughterhouses, to dye fabrics, to develop photos, to refine crude oil, and to manufacture parchment paper; It is used in deodorants and antiperspirants; [HSDB]

Comments

Hydrogen chloride gas and hydrochloric acid released upon contact of Al-Cl3 with moisture; Corrosive to the eyes, skin, and respiratory tract; Inhalation of dust or released HCl can cause acute pulmonary edema; [CHEMINFO] Occupational asthma confirmed by specific challenge testing in a foundry worker; [Malo] Experiments show that "there is essentially no HCl gas formation; the substance is quite unreactive." Contact with the anhydrous substance causes thermal and acid burns. [CAMEO] See "Aluminum."

Restricted

Use as a registered pesticide was cancelled; [HSDB]

Reference Link

Occupational asthma caused by aluminum.

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]

Explanatory Notes

VP = 1 mm Hg 100 degrees C; [HSDB] The Guide from the Emergency Response Guidebook is for "Aluminum chloride, anhydrous." Not TIH in land-based spills, but TiH substance released when spilled in water; [ERG 2016]

Adverse Effects
Asthma

Yes

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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Biomedical References

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Related Information in HazMap
Diseases

Occupational diseases associated with exposure to this agent:

Processes

Industrial Processes with risk of exposure: