Main Hazards: Can cause severe skin burns and eye damage. Moisture contact releases heat and hydrogen chloride; dust and hydrolysis products can damage the respiratory tract.
Handling: Prevent moisture contact and control dust exposure. Use appropriate ventilation, compatible gloves, protective clothing, and eye or face protection as specified in the current SDS and workplace assessment.
Storage: Keep the product dry in suitable tightly closed containers and follow the current SDS for storage conditions, segregation, and compatible packaging. Confirm procedures for opening, charging, and handling residual material with qualified site personnel.
Transport Reference: UN 1726, ALUMINIUM CHLORIDE, ANHYDROUS; Class 8; Packing Group II. Verify the actual product classification, packaging, and applicable shipping instructions against the current SDS and carrier review.
Documentation: Request the current product-specific SDS and relevant batch COA before ordering. Follow the SDS for emergency response, spill management, and disposal.
Anhydrous Aluminum Chloride CAS 7446-70-0
Anhydrous Aluminum Chloride (AlCl₃), CAS 7446-70-0
Anhydrous aluminum chloride (aluminium chloride, CAS No. 7446-70-0) is a moisture-sensitive inorganic Lewis acid supplied in granular and powder forms. It is used in Friedel–Crafts chemistry, hydrocarbon-resin manufacture, and selected fine-chemical synthesis routes. Commercial materials may be white, pale yellow, yellow, or slightly gray depending on the grade. Aure Chemical supports China sourcing, specification review, quality documentation, and international export coordination for anhydrous aluminum chloride.
Basic Information of Anhydrous Aluminum Chloride
The identifiers below describe anhydrous AlCl₃. The product-form photographs, technical-data-sheet grade limits, and white-granule sample analysis are presented separately so that appearance or particle size is not mistaken for a verified chemical grade.
| CAS No.: | 7446-70-0 |
|---|---|
| EC No.: | 231-208-1 |
| Linear Formula: | AlCl₃ |
| Molecular Weight: | 133.34 g/mol |
| Appearance: | Granules or powder; color depends on grade. The reference sample report describes white granules. |
| Thermal Behavior: | Approximately 190 °C at 253 kPa (TDS reference); sublimation occurs on heating at atmospheric pressure |
| Density: | Approximately 2.44 g/cm³ at 25 °C (reference solid density; bulk density depends on physical form) |
| Water Reactivity: | Dissolution in water is accompanied by hydrolysis and substantial heat release; moisture contact can release hydrogen chloride |
| Nature: | Moisture-sensitive, hygroscopic Lewis acid; corrosive and reactive with water |
| Transport Reference: | UN 1726, ALUMINIUM CHLORIDE, ANHYDROUS; Class 8; Packing Group II (confirm against the current product SDS) |
| Chemical Structure: |  |
Product Forms
The photographs illustrate five product-form descriptions. Confirm particle-size distribution and the applicable grade specification for each form before ordering. The sample analysis below covers white granules; other forms require their own batch documentation.
 |  |  |  |  |
| 2–10 mm Granules | 60–120 Mesh Ultrafine Powder | 16+ Mesh Powder | Reagent-Grade White Granules | Reagent-Grade White Powder |
Reference Quality Analysis
The following sample analysis provides a reference for white granular anhydrous aluminum chloride. It includes AlCl₃ content, iron expressed as FeCl₃, water-insoluble matter, and free aluminum. The report cites GB/T 3959-2008 and gives sample-specific technical limits; these are reproduced independently of the general TDS grade criteria below.
White Granules — Sample Analysis
| Test Item | Reported Specification | Reference Result |
|---|---|---|
| Appearance | White to slightly yellowish granules or powder | White granules |
| Aluminum Chloride (AlCl₃) | ≥98.5 wt.% | 99.13 wt.% |
| Iron (reported as FeCl₃) | ≤0.027 wt.% | 0.002 wt.% |
| Water-Insoluble Matter | ≤0.30 wt.% | 0.002 wt.% |
| Free Aluminum | ≤0.010 wt.% | 0.0002 wt.% |
Iron is reported on an FeCl₃ basis, and the figures have not been converted to elemental iron. Water-insoluble matter is a separate quality test and does not represent moisture content. The report does not identify the individual analytical methods or provide a heavy-metals result.
These results relate only to the tested sample and are provided for preliminary technical evaluation. They are not guaranteed results for every shipment or a specification for all five physical forms. The report does not identify the sample as reagent grade. Confirm the applicable grade and quality requirements with Aure Chemical and request the relevant batch-specific Certificate of Analysis (COA) before ordering.
Reported Grade Specifications — Technical Data Sheet
The TDS lists Superior Grade, First Grade, and Qualified Grade criteria and cites GB/T 3959-2008. These are specification references, not additional batch results. The white-sample report above uses its own stated limits, including a different iron limit; no TDS grade has been assigned to that sample here.
Superior Grade
| Test Item | Reported Specification | Reference Result |
|---|---|---|
| Appearance | Pale yellow, yellow, or slightly gray granules or powder; no lumps larger than 10 mm | TDS criteria only |
| Aluminum Chloride (AlCl₃) | ≥99.2 wt.% | TDS criteria only |
| Iron (reported as FeCl₃) | ≤0.04 wt.% | TDS criteria only |
| Water-Insoluble Matter | ≤0.05 wt.% | TDS criteria only |
| Heavy Metals (as Pb) | ≤0.006 wt.% | TDS criteria only |
| Free Aluminum | ≤0.010 wt.% | TDS criteria only |
First Grade
| Test Item | Reported Specification | Reference Result |
|---|---|---|
| Appearance | Pale yellow, yellow, or slightly gray granules or powder; no lumps larger than 10 mm | TDS criteria only |
| Aluminum Chloride (AlCl₃) | ≥98.8 wt.% | TDS criteria only |
| Iron (reported as FeCl₃) | ≤0.05 wt.% | TDS criteria only |
| Water-Insoluble Matter | ≤0.10 wt.% | TDS criteria only |
| Heavy Metals (as Pb) | ≤0.02 wt.% | TDS criteria only |
| Free Aluminum | Not specified in the TDS | TDS criteria only |
Qualified Grade
| Test Item | Reported Specification | Reference Result |
|---|---|---|
| Appearance | Pale yellow, yellow, or slightly gray granules or powder; no lumps larger than 10 mm | TDS criteria only |
| Aluminum Chloride (AlCl₃) | ≥98.5 wt.% | TDS criteria only |
| Iron (reported as FeCl₃) | ≤0.08 wt.% | TDS criteria only |
| Water-Insoluble Matter | ≤0.30 wt.% | TDS criteria only |
| Heavy Metals (as Pb) | ≤0.04 wt.% | TDS criteria only |
| Free Aluminum | Not specified in the TDS | TDS criteria only |
A dash in the original TDS for free aluminum in First Grade and Qualified Grade is shown as “Not specified”; it does not mean zero. Grade availability, physical form, and the final acceptance limits must be confirmed for the offered supply.
Primary Applications of Anhydrous Aluminum Chloride
The Lewis acidity of anhydrous aluminum chloride supports selected catalytic and reagent applications. Grade, iron content, insoluble matter, particle size, and moisture protection should be matched to the process.
Friedel–Crafts Synthesis: Used as a Lewis acid in aromatic alkylation and acylation routes for fine chemicals, fragrances, and other intermediates. Catalyst loading, substrate compatibility, and work-up requirements depend on the reaction.
Hydrocarbon and Petrochemical Processing: Used in selected alkylation, isomerization, and related hydrocarbon-conversion systems. Suitability is specific to the process and catalyst formulation.
Pharmaceutical and Agrochemical Intermediates: Used in selected catalytic synthesis steps for pharmaceutical and crop-protection intermediates. The supplied industrial or white-product analysis does not establish pharmaceutical-grade suitability.
Dye and Pigment Intermediates: Used in selected synthesis routes that require Lewis-acid-promoted reactions. Color and iron-related requirements should be assessed against the intended intermediate and purification process.
Hydrocarbon Resins and Polymer Chemistry: Used in selected hydrocarbon-resin and cationic-polymerization processes. Physical form can affect charging and dispersion; process performance requires qualification of the selected grade.
Laboratory and Specialty Reagent Use: Used where an anhydrous Lewis acid is required. Select the chemical grade and impurity limits independently of the powder or granular form.
Aure Chemical: Anhydrous Aluminum Chloride Sourcing and Export Support
Aure Chemical is a chemical trading and export supply business. We support China chemical sourcing, product specification review, supplier coordination, quality documentation, and international shipment arrangements for B2B customers.
Form and Grade Review: Clarify the required granular or powder form, particle-size designation, AlCl₃ content, iron basis, and additional impurity limits.
Quality Documentation: Request the applicable batch COA, current product-specific SDS, and available TDS. Reagent-grade or other special qualifications require supporting documentation.
Supplier Coordination: Confirm packaging, analytical reporting, availability, and any additional testing requirements with the selected supply source.
Export Logistics: Coordinate moisture-protective packaging, dangerous-goods documentation, carrier acceptance, and destination requirements. Supply and delivery details are confirmed in the quotation and order.
For a quotation, specify the required product form, particle size, grade, impurity limits, quantity, packaging preference, and destination.
Safety, Handling & Documentation
Anhydrous aluminum chloride is corrosive and reacts strongly with water. The following summary and GHS05 symbol are a reference for the anhydrous material. Use the current SDS for the actual supplied product and destination to determine complete labeling, handling, storage, and transport requirements.
Packaging
10kg, 20kg Fiber drum
Final packaging, capacity and net weight are confirmed in the quotation and order.
