Dichloro(ethyl)silane

Dichloro(ethyl)silane is an organosilicon compound with the molecular formula C2H6Cl2Si and CAS number 1789-58-8. This chemical features a silicon atom bonded to an ethyl group and two chlorine atoms, making it a chlorosilane derivative. With a molecular weight of 129.06 g/mol, it belongs to the family of alkylchlorosilanes used primarily as intermediates in silicon chemistry and materials synthesis.

Dichloro(ethyl)silane is typically a colorless liquid at room temperature with a characteristic pungent odor typical of chlorosilanes. As an organosilicon compound, it is moisture-sensitive and reacts readily with water, releasing hydrogen chloride gas. The compound is generally soluble in organic solvents but incompatible with protic solvents due to its hydrolytic instability.

Dichloro(ethyl)silane serves as an important intermediate in the synthesis of organosilicon compounds and silicone materials. It is primarily used in the production of ethyl-functional siloxanes, surface modification agents, and coupling agents. The compound finds applications in the manufacture of specialty silicones, sealants, and materials requiring ethyl-substituted silicon functionalities in various industrial processes.

Safe handling of dichloro(ethyl)silane requires 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 due to potential HCl release upon moisture contact. Avoid contact with skin, eyes, and inhalation of vapors. Use proper grounding procedures to prevent static electricity buildup during transfer operations.

Dichloro(ethyl)silane must be stored in a cool, dry place away from moisture and humidity to prevent hydrolysis reactions. Use tightly sealed containers made of compatible materials, preferably under inert atmosphere. Keep away from incompatible substances such as water, alcohols, and strong bases. Storage areas should be well-ventilated and equipped with appropriate spill containment measures.

In case of skin contact with dichloro(ethyl)silane, immediately remove contaminated clothing and flush affected areas with plenty of water for at least 15 minutes. For eye contact, rinse thoroughly with water and seek immediate medical attention. If inhaled, move to fresh air immediately. In case of ingestion, do not induce vomiting and seek medical attention promptly while providing safety data sheet information.

Dichloro(ethyl)silane waste must be disposed of according to local and national hazardous waste regulations. The compound should not be released into the environment and requires specialized treatment at authorized waste disposal facilities. Containers should be properly labeled and handled by certified waste management companies. Hydrolysis followed by neutralization may be appropriate under controlled conditions with proper expertise.

Dichloro(ethyl)silane is classified under ADR Class 4.3 (substances which, in contact with water, emit flammable gases), Packing Group I, indicating high hazard level. Transportation requires specialized packaging, proper labeling with appropriate hazard placards, and compliance with dangerous goods regulations. Vehicles must be equipped with appropriate safety equipment and drivers must hold valid dangerous goods certifications.

Dichloro(ethyl)silane is subject to various chemical regulations including REACH registration requirements in Europe for commercial use. While not classified as a SVHC (Substance of Very High Concern), it must comply with CLP regulation requirements for classification, labeling, and packaging. Users must ensure proper safety data sheets are available and follow occupational exposure guidelines and environmental protection measures.

Dichloro(ethyl)silane is available through specialized chemical distributors in Europe, including OYSI, a European distributor of technical chemicals. When sourcing this compound, ensure suppliers provide proper documentation including safety data sheets, certificates of analysis, and compliance with relevant regulations. Contact qualified distributors for availability, technical specifications, and regulatory compliance information for your specific application requirements.