Mineral Fillers & Pigments Available — Bulk Only

Aluminum Chloride, Anhydrous (AlCl3)

CAS 7446-70-0 · Formula AlCl3 · MW 133.34 g/mol

The benchmark Lewis-acid catalyst for Friedel-Crafts chemistry and a precursor to aluminum compounds. It is the classic catalyst for Friedel-Crafts acylation and alkylation and serves as a chemical intermediate for numerous aluminum compounds, with further use in petroleum cracking and the manufacture of rubbers and lubricants.

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UN Number
UN 1726
Hazard Class
Class 8
HS Code
2827.32
At a Glance
Material Family
Mineral Fillers & Pigments
Record Type
Pure compound
Primary Role
Color / Pigmentation · pH Adjustment
Functional Roles
ALUMINUM CHLORIDE
ANTIPERSPIRANTASTRINGENTDEODORANT
Applications & Use Cases
  • Friedel-Crafts catalyst: Acid catalyst for acylation and alkylation reactions.
  • Chemical intermediate: Precursor for aluminum compounds and specialty chemicals.
  • Petroleum processing: Catalyst in hydrocarbon cracking.
  • Polymer & lubricant manufacture: Used in producing rubbers and lubricants.
Physical Properties
Melting Point
194 °C
Boiling Point
110 °C at 760 mmHg
Density
2.44 at 25 °C
Solubility
Water reactive
Vapor Pressure
1 mm Hg at 100.0 °C
Safety & Handling
Full SDS available on request

A grade-specific Safety Data Sheet (SDS) — with the complete hazard classification, handling precautions, and transport information — is supplied with every shipment and available on request. Confirm all safety and regulatory details against the SDS for your specific grade.

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DOT / UN Transport Classification
DOT hazard class 8 placard
UN / DOT NumberUN 1726
Hazard Class / DivisionClass 8
Packing GroupII
Proper Shipping NameAluminum chloride, anhydrous

Transport classification per the UN Model Regulations / 49 CFR 172.101 Hazardous Materials Table. Confirm against the grade-specific SDS (Section 14) before shipping.

HS / Tariff Classification
Harmonized System (HS) Code — 6-digit international heading
2827 . 32
Chapter 28
Inorganic chemicals; compounds of precious metals and rare-earth metals
Heading 28.27
Internationally harmonized (WCO HS)
Subheading 2827.32
6-digit international code — national tariff line adds further digits
Chemical Identity
CAS Number
7446-70-0
Molecular Formula
AlCl3
Molecular Weight
133.34 g/mol
IUPAC Name
trichloroalumane
INCI Name
ALUMINUM CHLORIDE
PubChem CID
InChI Key
VSCWAEJMTAWNJL-UHFFFAOYSA-K
Synonyms & Trade Names
Aluminium chloride Aluminum trichloride trichloroalumane Aluminium trichloride Trichloroaluminum Aluminum chloride anhydrous AlCl3 Pearsall Aluminiumchlorid TK Flock Aluminum chloride (1:3) Chlorure d'aluminium Alluminio(cloruro di) aluminium(III) chloride Aluminium, (chlorure d') Aluminum chloride, anhydrous trichloridoaluminium Aluminum chloride (anhydrous) Aluminum, (chlorure d')
Full Description

Anhydrous aluminum chloride (CAS 7446-70-0, AlCl3) is a powerful Lewis acid. It is the classic catalyst for Friedel-Crafts acylation and alkylation and serves as a chemical intermediate for numerous aluminum compounds, with further use in petroleum cracking and the manufacture of rubbers and lubricants.

Frequently Asked Questions

What is anhydrous aluminum chloride used for?

Anhydrous aluminum chloride (CAS 7446-70-0, AlCl3) is a powerful Lewis acid and the classic catalyst for Friedel-Crafts acylation and alkylation. It also serves as a chemical intermediate for numerous aluminum compounds and is used in petroleum cracking and in the manufacture of rubbers and lubricants.

What is the chemical formula and CAS number for anhydrous aluminum chloride?

Anhydrous aluminum chloride has the formula AlCl3 and CAS 7446-70-0. This is the technical-grade anhydrous powder; it differs from aluminum chloride hexahydrate. Purity is confirmed on the Certificate of Analysis per lot.

What is the difference between anhydrous aluminum chloride and the hexahydrate?

The anhydrous form (AlCl3, CAS 7446-70-0) is the active Lewis-acid catalyst used in Friedel-Crafts chemistry; the hexahydrate (AlCl3·6H2O) is a different material and is not interchangeable as a catalyst. This product is the anhydrous technical-grade powder. Specify the form you need when ordering.

How is anhydrous aluminum chloride shipped (DOT/UN)?

Anhydrous aluminum chloride ships under UN 1726. Because it is moisture-reactive, packaging and the shipping description must follow the SDS — confirm details with your carrier. We supply the powder in sealed drums and bulk packaging.

What is the cost of bulk anhydrous aluminum chloride?

Bulk pricing depends on purity grade and order volume. We supply manufacturers in moisture-protected drums and bulk packaging — request a quote with your target grade and tonnage for current pricing, SDS, and CoA.

Disclaimer. Information on this page — including properties, identifiers, hazard, transport (DOT/UN) and tariff (HS) classifications, and applications — is provided for general reference and is compiled from authoritative public sources (e.g. PubChem/ECHA, 49 CFR 172.101, the Harmonized Tariff Schedule). Values are typical and are not a guaranteed specification; the Certificate of Analysis (CoA) for the lot purchased governs. Products are sold for industrial and professional use only. Nothing here is a medical, health, or efficacy claim or advice. Always consult the current Safety Data Sheet (SDS) before handling, storage, transport or disposal, and confirm regulatory status, classification and suitability for your application and jurisdiction. Hazard, transport and tariff classifications must be verified for your specific shipment. RawSource makes no warranty, express or implied, and assumes no liability for use of this information. Trademarks. Third-party trademarks and brand names are the property of their respective owners; any reference is nominative — used only to identify a comparable product — and does not imply affiliation with, sponsorship by, or endorsement by the trademark owner.