Dichloro(dimethyl)silane

Dichloro(dimethyl)silane is an organosilicon compound with the molecular formula C2H6Cl2Si and CAS number 75-78-5. This chemical substance has a molecular weight of 129.06 g/mol and belongs to the family of chlorosilanes. It is classified as a flammable liquid and presents several health hazards including skin and eye irritation, as well as specific target organ toxicity. The compound is widely used in industrial applications for silicon-based chemical synthesis and surface modification processes.

Dichloro(dimethyl)silane is a colorless liquid at room temperature with a characteristic pungent odor typical of chlorosilanes. The compound is highly reactive with water and moisture, undergoing hydrolysis to form hydrogen chloride gas and corresponding silanols. It has low viscosity and is soluble in most organic solvents but reacts violently with water. The substance exhibits flammable properties and can form explosive vapor-air mixtures under certain conditions.

Dichloro(dimethyl)silane is primarily used as an intermediate in the production of silicone polymers and resins. It serves as a key building block for manufacturing dimethylsilicone compounds and cross-linking agents. The substance is also employed in surface treatment applications, particularly for creating hydrophobic coatings and improving adhesion properties. Additionally, it finds use in the semiconductor industry for specialized chemical vapor deposition processes and in the production of specialty silicone materials.

Dichloro(dimethyl)silane requires careful handling using appropriate personal protective equipment including chemical-resistant gloves, safety goggles, and protective clothing. Work should be conducted in well-ventilated areas or under fume hoods to prevent inhalation exposure. Avoid contact with skin and eyes, and ensure no ignition sources are present due to its flammable nature. Use non-sparking tools and equipment, and always have appropriate fire extinguishing media readily available during handling operations.

Dichloro(dimethyl)silane must be stored in tightly sealed containers in a cool, dry, well-ventilated area away from heat sources and ignition points. The storage area should be protected from moisture and water to prevent hydrolysis reactions. Keep containers away from incompatible materials such as strong bases, alcohols, and oxidizing agents. Store in original containers with proper labeling and ensure compliance with local flammable liquid storage regulations including appropriate fire suppression systems.

Dichloro(dimethyl)silane contact requires immediate first aid measures depending on the exposure route. For skin contact, immediately remove contaminated clothing and flush affected areas with plenty of water for at least 15 minutes. In case of eye contact, rinse thoroughly with water 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 while providing supportive care.

Dichloro(dimethyl)silane disposal must comply with local and national hazardous waste regulations due to its flammable and corrosive properties. The substance should be collected in appropriate containers and delivered to licensed hazardous waste disposal facilities. Small quantities may be carefully hydrolyzed under controlled conditions by qualified personnel, neutralizing the resulting hydrogen chloride. Never dispose of this chemical through regular drainage systems or municipal waste streams, and always consult local environmental authorities for specific disposal requirements.

Dichloro(dimethyl)silane is classified under ADR Class 3 (flammable liquids), Packing Group II for transportation purposes. The substance must be packaged in UN-approved containers with appropriate labeling including flammable liquid hazard labels. Transport vehicles must comply with ADR regulations for Class 3 substances, including proper ventilation, fire extinguishing equipment, and driver certification. Shipping documentation must include proper shipping names, hazard classes, and emergency response information according to dangerous goods transportation regulations.

Dichloro(dimethyl)silane is subject to various chemical regulations including REACH registration requirements in the European Union and CLP classification and labeling obligations. The substance is not currently listed as a Substance of Very High Concern (SVHC). It must be handled according to occupational health and safety regulations due to its flammable and irritating properties. Users must comply with local chemical safety legislation, maintain safety data sheets, and implement appropriate risk management measures in industrial applications.

Dichloro(dimethyl)silane is available through OYSI, a European distributor specializing in technical chemicals and industrial raw materials. OYSI provides reliable supply chains across European markets with proper regulatory compliance and technical support. As a specialized chemical distributor, OYSI ensures product quality, appropriate packaging, and complete documentation including safety data sheets and certificates of analysis. Contact OYSI directly for availability, specifications, and delivery options tailored to your specific industrial requirements and geographic location.