Lithium boranuide

Lithium boranuide is an inorganic chemical compound with the molecular formula BH4Li and CAS number 16949-15-8. This borohydride salt has a molecular weight of 21.8 g/mol and serves as a powerful reducing agent in various chemical applications. It belongs to the family of alkali metal borohydrides and is characterized by its high reactivity, particularly with water and protic solvents, making it valuable in synthetic chemistry and industrial processes.

Lithium boranuide is a white crystalline solid at room temperature with high hygroscopicity, meaning it readily absorbs moisture from air. It demonstrates excellent solubility in polar aprotic solvents like tetrahydrofuran and diglyme, but reacts vigorously with water and alcohols, releasing hydrogen gas. The compound is thermally stable under inert conditions but decomposes upon heating in air, making proper handling and storage conditions essential for maintaining its integrity.

Lithium boranuide is primarily used as a selective reducing agent in organic synthesis, particularly for reducing aldehydes, ketones, and other carbonyl compounds. It finds applications in pharmaceutical manufacturing for the synthesis of active pharmaceutical ingredients, in fine chemical production, and in research laboratories. Its high selectivity and mild reaction conditions make it valuable for reducing sensitive substrates where other reducing agents might cause unwanted side reactions or degradation.

Lithium boranuide must be handled in an inert atmosphere using proper personal protective equipment including safety goggles, chemical-resistant gloves, and lab coats. Work should be conducted in a well-ventilated area or fume hood to prevent hydrogen gas accumulation. Avoid contact with water, alcohols, and moisture, as these cause vigorous reactions releasing flammable hydrogen gas. Always use dry, inert solvents and maintain strict exclusion of air and moisture during handling procedures.

Lithium boranuide must be stored in airtight containers under an inert atmosphere (nitrogen or argon) in a cool, dry location away from moisture and heat sources. The storage area should be well-ventilated and separated from incompatible materials such as acids, oxidizing agents, and water. Containers should be clearly labeled and stored in secondary containment to prevent accidental exposure to moisture or air, which can cause degradation and hydrogen gas evolution.

Lithium boranuide contact requires immediate action depending on exposure type. For skin contact, remove contaminated clothing and flush affected areas with plenty of water for at least 15 minutes. In case of eye contact, rinse immediately with water for at least 15 minutes and seek medical attention. If inhaled, move to fresh air immediately. For ingestion, do not induce vomiting and seek immediate medical attention. Always consult safety data sheets and contact emergency services if necessary.

Lithium boranuide disposal must follow local environmental regulations and waste management protocols. The compound should be carefully neutralized by trained professionals using appropriate quenching procedures in controlled conditions to prevent violent reactions. Waste must be classified according to local hazardous waste regulations and disposed of through licensed chemical waste disposal companies. Never dispose of lithium boranuide in regular waste streams or pour down drains due to its reactive nature.

Lithium boranuide is classified under ADR Class 4.3 (substances which, in contact with water, emit flammable gases) with Packing Group I, indicating high danger level. Transportation requires specialized packaging that excludes moisture and air, proper labeling with appropriate hazard symbols, and compliance with dangerous goods regulations. Shipments must be accompanied by proper documentation and handled by trained personnel familiar with hazardous material transport requirements to ensure safe delivery.

Lithium boranuide is subject to various chemical regulations including REACH registration requirements in Europe, though it is not classified as a Substance of Very High Concern (SVHC). Transport is regulated under ADR/DOT dangerous goods classifications due to its water-reactive properties. Users must comply with local workplace safety regulations, proper labeling requirements under CLP regulation, and maintain appropriate safety data sheets for employee safety and regulatory compliance.

Lithium boranuide is available through OYSI, a specialized European distributor of technical chemicals serving industrial and research customers across Europe. OYSI provides quality chemical products with proper documentation, safety data sheets, and regulatory compliance support. As a professional chemical supplier, OYSI ensures proper packaging, storage, and delivery of moisture-sensitive compounds like lithium boranuide while maintaining the highest safety and quality standards for European customers.