Lithium;silicon

Lithium silicon is an intermetallic compound with the chemical formula LiSi and molecular weight of 35.1 g/mol. This binary compound combines lithium and silicon atoms in a 1:1 ratio, forming a unique material with distinctive properties. It belongs to the class of alkali metal silicides and exhibits characteristics typical of intermetallic compounds. The CAS number 68848-64-6 specifically identifies this compound in chemical databases and regulatory frameworks worldwide.

Lithium silicon is a solid intermetallic compound at room temperature with a molecular formula of LiSi and molecular weight of 35.1 g/mol. As an intermetallic compound, it typically appears as a crystalline solid with metallic luster. The compound exhibits properties intermediate between its constituent elements, combining lithium's reactivity with silicon's structural characteristics. Its exact physical appearance, solubility, and thermal properties depend on the specific crystal structure and preparation method.

Lithium silicon serves primarily in specialized industrial applications where its unique intermetallic properties are advantageous. Common uses include advanced materials research, potential applications in battery technology development, and as a precursor for specialized silicon-lithium compounds. It may also find applications in metallurgy and materials science research. The compound's specific properties make it valuable for developing new materials with tailored electrical, mechanical, or thermal characteristics in specialized industrial processes.

Lithium silicon requires careful handling due to its classification under ADR Class 4.3 (substances which, in contact with water, emit flammable gases). Use appropriate personal protective equipment including safety glasses, chemical-resistant gloves, and protective clothing. Work in well-ventilated areas and avoid contact with moisture or water. Keep away from heat sources, sparks, and open flames. Handle in dry conditions and use proper grounding procedures to prevent static electricity buildup during transfer operations.

Lithium silicon must be stored in dry, cool conditions away from moisture and water sources due to its ADR 4.3 classification. Use airtight, moisture-proof containers in a well-ventilated storage area. Keep away from heat sources, ignition sources, and incompatible materials such as oxidizing agents and acids. Store in original containers with proper labeling and maintain inventory records. Ensure storage areas have appropriate fire suppression systems and emergency response equipment readily available.

Lithium silicon exposure requires immediate response depending on the contact type. For skin contact, remove contaminated clothing and wash affected area thoroughly with water. In case of eye contact, flush immediately with clean water for at least 15 minutes and seek medical attention. If inhaled, move person to fresh air immediately. For ingestion, do not induce vomiting and seek immediate medical attention. Always consult safety data sheets for specific first aid measures and contact emergency services when necessary.

Lithium silicon disposal must comply with local and European waste regulations for hazardous materials. The compound cannot be disposed of as regular waste due to its reactive nature and ADR 4.3 classification. Contact licensed hazardous waste disposal companies for proper collection and treatment. Small quantities should be neutralized following approved procedures before disposal. Maintain disposal records and ensure compliance with WEEE, RoHS, and local environmental regulations. Never dispose of in sewers, soil, or regular waste streams.

Lithium silicon transport follows ADR Class 4.3 regulations as substances that emit flammable gases when in contact with water, classified as Packing Group II. Proper UN specification packaging is required, along with appropriate hazard labels and transport documentation. Vehicles must carry appropriate emergency equipment and drivers need ADR certification. Shipments require proper segregation from incompatible materials and must follow prescribed transport routes with emergency response information readily available throughout transit.

Lithium silicon is subject to various European chemical regulations including REACH registration requirements, though it is not classified as a Substance of Very High Concern (SVHC). Transport regulations under ADR apply due to its Class 4.3 classification. Standard CLP labeling and safety data sheet requirements apply for commercial handling. Industrial users must comply with occupational safety regulations and environmental protection measures. Import/export may require additional documentation depending on quantities and end-use applications.

Lithium silicon is available through OYSI, a specialized European distributor of technical chemicals and advanced materials. OYSI provides this compound to industrial customers, research institutions, and specialized manufacturers across Europe. As a professional chemical distributor, OYSI ensures proper handling, documentation, and compliance with European regulations including REACH and ADR transport requirements. Contact OYSI directly for availability, technical specifications, and delivery options tailored to your specific application requirements and location within Europe.