What is Aluminum Chloride (AlCl₃)?

Aluminum Chloride (AlCl₃) is an inorganic compound primarily used in chemical synthesis, catalysts, and industrial applications. It exists in both anhydrous and hydrated forms, with the anhydrous form being a highly reactive Lewis acid. Aluminum chloride plays a crucial role in the production of petrochemicals, pharmaceuticals, and polymers.

Chemical Properties and CAS Number

• Material: Aluminum Chloride
• CAS Number: 7446-70-0 (anhydrous), 7784-13-6 (hexahydrate)
• Molecular Formula: AlCl₃
• Molecular Weight: 133.34 g/mol
• Density: 2.44 g/cm³ (anhydrous)
• Melting Point: 192.4°C (anhydrous)
• Boiling Point: Sublimates at 180°C (anhydrous)
• Solubility: Highly soluble in water, ethanol, and organic solvents
• Appearance: White to pale yellow crystalline solid
• Reactivity: Strong Lewis acid, hygroscopic

Applications of Aluminum Chloride (AlCl₃)

1. Catalyst in Organic Synthesis

Used in Friedel-Crafts reactions, polymerization, and alkylation processes in the chemical and pharmaceutical industries.

2. Petrochemical Industry

Essential for refining crude oil and in the production of high-purity hydrocarbons.

3. Polymer Manufacturing

Acts as a catalyst in the synthesis of synthetic rubbers and high-performance plastics.

4. Pharmaceutical Applications

Used in the synthesis of active pharmaceutical ingredients (APIs) and intermediates.

5. Antiperspirants and Deodorants

Aluminum chloride hexahydrate is a common ingredient in antiperspirant formulations.

6. Dye and Pigment Industry

Utilized in the production of high-quality dyes and pigments for textiles and coatings.

7. Water Treatment

Acts as a coagulant in wastewater treatment plants to remove impurities.

Pricing of Aluminum Chloride (AlCl₃)

Pricing varies depending on purity, form (anhydrous or hexahydrate), and bulk order size:

• Small Lab-Scale Orders: $50 – $200 per kg
• Industrial-Scale Orders: $300 – $1,000 per ton
• High-Purity Custom Orders: Pricing based on specifications

Factors Influencing Pricing

• Purity level (industrial, reagent, or analytical grade)
• Hydration state (anhydrous vs. hexahydrate)
• Packaging and shipping costs
• Bulk order discounts

Conclusion

Aluminum Chloride (AlCl₃) is a versatile industrial chemical widely used as a catalyst in organic synthesis, petrochemicals, polymer manufacturing, and pharmaceuticals. Its strong Lewis acid properties and reactivity make it indispensable in various applications.