Salts & Minerals
REACH
Aluminum chloride
CAS Number
7446-70-0
EC Number
231-208-1
What is Aluminum chloride?
Aluminum chloride anhydrous (CAS 7446-70-0), also known as aluminum trichloride, is a high-activity Lewis acid catalyst and inorganic salt.
Where is Aluminum chloride used?
- Petrochemical and organic synthesis: Friedel-Crafts alkylation and acylation
- Dyes, pharmaceuticals and specialty chemicals: production basis
- Water treatment: coagulant that aggregates suspended solids and colloidal matter, improving clarification
- Municipal and industrial effluent systems: effective
- Textile and leather: preservative and mordant that fixes dyes to fiber substrates
- Pharmaceutical manufacturing: catalyst intermediate in active ingredient synthesis
- It drives complex chemical reactions with high yields and purity.
Good to know: Handling and packaging specifications typically account for its moisture sensitivity.
Commercial specifications
- Sealed, inert-atmosphere containers from drum to bulk quantities
Other Names (Synonyms)
aluminum trichloride|aluminium chloride|aluminum chloride anhydrous|Aluminium trichloride|AlCl3|Pearsall|Aluminum chloride (AlCl3)
What are the physical properties of Aluminum chloride?
Melting Point 192.6 °C
Boiling Point 182.7 °C @ Press: 752 Torr
Density 2.48 g/cm³
Flash Point 88 °C
Appearance Aluminum chloride is a noncombustible but highly reactive whitish-gray, yellow, or green powder or liquid. Strong, acidic, irritating odor like hydrochloric acid
Color Yellow to gray
Odor Hydrogen chloride odor detectable when exposed to moist air
Form powder
Water Solubility reacts
Vapor Pressure 1 mm Hg ( 100 °C)
pH 2.4 (100g/l, H2O, 20℃)
How is Aluminum chloride classified and handled safely? Learn More
Danger
GHS05· Corrosive GHS07· Irritant GHS08· Health Hazard GHS09· Environmental Hazard
Hazard Statements
H290 May be corrosive to metals
H302 Harmful if swallowed
H314 Causes severe skin burns and eye damage
H315 Causes skin irritation
Precautionary Statements
P203 Obtain, consult and follow expert instructions for use.
P234 Keep only in original packaging.
P260 Do not breathe dust/fume/gas/mist/vapours/spray.
P264 Wash … thoroughly after handling.
Which trade and regulatory codes apply to Aluminum chloride?
HS Code 28273200
UN Number 3264
ADR Class 8
Packing Group III
Storage Class 8A - Combustible corrosive hazardous materials
WGK (Germany) 1