Lithium boranuide

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

Lithium boranuide is typically a white to off-white crystalline solid at room temperature with high hygroscopic properties. The compound is highly soluble in polar aprotic solvents such as tetrahydrofuran and diethyl ether, while being reactive with protic solvents like water and alcohols. It decomposes upon contact with moisture, releasing hydrogen gas. The substance has a relatively low molecular weight of 21.8 g/mol and exhibits strong reducing properties due to its borohydride structure.

Lithium boranuide is primarily used as a selective reducing agent in organic synthesis, particularly for the reduction of carbonyl compounds, esters, and amides. It finds applications in pharmaceutical manufacturing, fine chemical synthesis, and research laboratories. The compound is valued for its ability to perform reductions under mild conditions and its selectivity compared to other borohydride reagents. It is also used in the preparation of other borohydride compounds and as a hydrogen storage material in specialized applications.

Lithium boranuide must be handled under inert atmosphere conditions using appropriate personal protective equipment including safety glasses, chemical-resistant gloves, and lab coats. Work should be conducted in well-ventilated areas or under fume hoods due to potential hydrogen gas evolution. Avoid contact with water, alcohols, and other protic substances. Use dry, inert solvents only and ensure all equipment is thoroughly dried before use. Keep fire extinguishing equipment nearby as the compound may generate flammable hydrogen gas upon decomposition.

Lithium boranuide must be stored in tightly sealed containers under inert atmosphere, preferably nitrogen or argon gas. Keep the material in a cool, dry place away from moisture, heat sources, and incompatible substances such as water, alcohols, acids, and oxidizing agents. Use appropriate secondary containment and ensure containers are properly labeled. Storage areas should be well-ventilated and equipped with appropriate fire safety measures due to the potential for hydrogen gas generation upon contact with moisture.

Lithium boranuide exposure requires immediate action depending on the contact type. For skin contact, remove contaminated clothing and flush the affected area 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 the person to fresh air and provide respiratory support if needed. For ingestion, do not induce vomiting and seek immediate medical attention. Always consult safety data sheets and contact emergency services for serious exposures.

Lithium boranuide disposal must comply with local, national, and international hazardous waste regulations. The compound should be neutralized carefully by qualified personnel using appropriate methods under controlled conditions. Small quantities can be cautiously quenched with isopropanol under inert atmosphere, followed by careful hydrolysis. Larger quantities require professional hazardous waste disposal services. Never dispose of the material through regular waste streams or sewers. Consult local environmental authorities and waste management companies for proper disposal procedures and documentation requirements.

Lithium boranuide is classified under ADR Class 4.3 (substances which, in contact with water, emit flammable gases), Packing Group I, indicating high danger level. Transportation requires UN-approved packaging designed for water-reactive substances and proper hazardous material documentation. Packages must be kept dry and protected from moisture during transit. Professional hazardous goods transport services should be used, with drivers trained in dangerous goods handling. Ensure compliance with international transport regulations including IMDG for sea transport and IATA for air transport.

Lithium boranuide is subject to various chemical regulations including REACH registration requirements in Europe for commercial use above certain tonnage thresholds. While not classified as a SVHC (Substance of Very High Concern), it must comply with CLP regulation for classification, labeling, and packaging. The substance falls under dangerous goods transport regulations (ADR/IMDG/IATA) due to its water-reactive properties. Users must ensure proper risk assessments, safety data sheet provision, and workplace safety compliance according to local occupational health and safety legislation.

Lithium boranuide is available through OYSI, a specialized European distributor of technical chemicals serving industrial and research customers across Europe. OYSI provides high-quality lithium boranuide with proper documentation, safety data sheets, and regulatory compliance support. As a professional chemical distributor, OYSI ensures appropriate packaging, handling, and delivery of this water-sensitive material. Contact OYSI directly for availability, technical specifications, and regulatory compliance assistance for your specific application requirements in European markets.