Overview
Sodium Tetrachloroaluminate (NaAlCl4) is an inorganic salt primarily used in specialized chemical processes. It serves as a Lewis acid catalyst in organic synthesis and finds applications in electrochemistry, particularly in battery technologies. The compound is hygroscopic and requires careful handling to prevent decomposition. Industrially, it is valued for its ability to facilitate chlorination reactions and stabilize reactive intermediates. Its compatibility with non-aqueous systems makes it suitable for high-energy-density batteries, though its moisture sensitivity demands strict storage protocols.
Physical and Chemical Properties
As a crystalline solid, Sodium Tetrachloroaluminate exhibits high solubility in polar solvents like water, ethanol, and acetone. Its molecular structure comprises a tetrahedral [AlCl4]− anion coordinated with a sodium cation. The compound decomposes upon heating, releasing chlorine gas, which necessitates ventilation in industrial settings. Key chemical behaviors include its role as a chloride ion donor and its reactivity with protic solvents. These properties are leveraged in catalytic systems where controlled chlorination or stabilization of cationic species is required.
Main Applications
In organic chemistry, Sodium Tetrachloroaluminate catalyzes Friedel-Crafts alkylations and acylations. Its use in aluminum electroplating baths enhances deposition efficiency and coating quality. The compound is also explored in sodium-aluminum battery research due to its ionic conductivity in molten states. Industrial-scale applications include petroleum refining and the production of specialty polymers. Its niche role in photolithography for semiconductor manufacturing underscores its versatility in high-tech sectors.
Safety and Storage
Due to its corrosive nature, Sodium Tetrachloroaluminate requires PPE (gloves, goggles) during handling. Moisture exposure leads to hydrolysis, generating hydrogen chloride gas—work under fume hoods is mandatory. Store in airtight containers with desiccants in cool (<25°C), dry environments. Spills should be neutralized with sodium bicarbonate and rinsed with copious water. Regulatory compliance (e.g., OSHA Hazard Communication Standard) is essential for workplace safety. Shipping classifications typically designate it as a Class 8 corrosive material.
B2B Procurement Guide
Bulk procurement should prioritize suppliers with ISO 9001 certification and batch-specific COAs (Certificates of Analysis). Technical-grade (95-98% purity) is common for industrial use, while research applications may require ≥99% purity. Packaging options include 25 kg HDPE drums or custom quantities under inert gas. Lead times vary; establish long-term contracts with reputable manufacturers to ensure supply chain stability. Sample testing for chloride content and moisture levels is recommended before large purchases. Spot prices fluctuate with aluminum and chlorine market trends.
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