Silylsilane

Silylsilane is an inorganic silicon compound with the molecular formula H6Si2 and CAS number 1590-87-0. This compound consists of two silicon atoms connected by a silicon-silicon bond, with each silicon atom bearing hydrogen substituents. With a molecular weight of 62.22 g/mol, silylsilane belongs to the family of silicon hydrides and represents one of the simplest disilanes. It is characterized by its reactive Si-H bonds and Si-Si backbone structure.

Silylsilane is a colorless gas at room temperature with high reactivity due to its Si-H bonds. The compound exhibits spontaneous flammability in air and is highly moisture-sensitive, reacting readily with water and oxygen. It has a low boiling point typical of small silicon hydrides and demonstrates high volatility. The Si-Si bond length and Si-H bond characteristics make it an important precursor in silicon chemistry applications.

Silylsilane serves primarily as a chemical precursor in semiconductor manufacturing and silicon-based material synthesis. It is utilized in chemical vapor deposition (CVD) processes for producing high-purity silicon films and coatings. The compound finds applications in the synthesis of more complex organosilicon compounds and as a reducing agent in specialized chemical reactions. Its unique Si-Si bonding makes it valuable for research into silicon cluster chemistry and advanced materials development.

Silylsilane requires careful handling due to its pyrophoric nature and reactivity with moisture. Work must be conducted in inert atmosphere using nitrogen or argon, with all equipment thoroughly dried beforehand. Personal protective equipment should include chemical-resistant gloves, safety goggles, and appropriate respiratory protection. Avoid any contact with air, water, or oxidizing materials. All manipulations should occur in well-ventilated areas or under controlled atmospheric conditions with proper gas handling equipment.

Silylsilane must be stored under inert gas atmosphere in sealed, moisture-free containers at controlled temperatures. Storage areas should be dry, well-ventilated, and protected from heat sources, sparks, and oxidizing materials. The compound should be kept away from water, alcohols, and any protic solvents. Specialized gas storage equipment with pressure regulation may be required. Regular monitoring of storage conditions and container integrity is essential to prevent decomposition or hazardous reactions.

Silylsilane exposure requires immediate action due to its reactive nature. For skin contact, remove contaminated clothing and flush affected areas with copious amounts of water for at least 15 minutes. In case of eye contact, rinse immediately with water and seek medical attention. If inhaled, move the person to fresh air and provide respiratory support if needed. Due to the compound's pyrophoric properties, extinguish any fires with appropriate dry chemical extinguishers, never water.

Silylsilane disposal requires specialized procedures due to its reactive and potentially hazardous nature. Small quantities can be carefully hydrolyzed under controlled conditions with appropriate safety measures. Larger amounts should be handled by licensed hazardous waste disposal companies familiar with reactive silicon compounds. Never dispose of silylsilane in regular waste streams or pour into drains. Contact local environmental authorities for specific disposal requirements and approved facilities in your region.

Silylsilane is classified under ADR Class 2 (gases) for transportation purposes, requiring specialized handling during shipping. The compound must be transported in approved pressure vessels or gas cylinders designed for reactive gases. Vehicles must be properly placarded and drivers trained in hazardous materials handling. Due to its pyrophoric nature, additional precautions beyond standard gas transport may be required. Consult current ADR regulations and work with experienced hazardous materials transporters.

Silylsilane is subject to various chemical safety regulations including REACH registration requirements in Europe and classification under CLP regulations. While not currently listed as a SVHC (Substance of Very High Concern), it falls under general chemical safety legislation due to its reactive properties. Manufacturers and importers must comply with safety data sheet requirements and proper labeling. Industrial users should ensure compliance with workplace safety regulations and local environmental protection standards.

Silylsilane is available through OYSI, a European distributor specializing in technical chemicals and advanced materials. OYSI provides reliable supply chains for research institutions, semiconductor manufacturers, and specialized chemical companies requiring high-purity silylsilane. As an established chemical distributor, OYSI ensures proper handling, documentation, and regulatory compliance for European customers. Contact OYSI directly for availability, specifications, and delivery options suited to your specific application requirements.