Cyclohexyl-dimethoxy-methylsilane

Cyclohexyl-dimethoxy-methylsilane is an organosilicon compound with the molecular formula C9H20O2Si and CAS number 17865-32-6. This silane derivative features a cyclohexyl group attached to silicon along with two methoxy groups and one methyl group. With a molecular weight of 188.34 g/mol, it belongs to the family of alkoxy silanes used primarily as coupling agents and surface modifiers in various industrial applications.

Cyclohexyl-dimethoxy-methylsilane is typically a clear to pale yellow liquid at room temperature with a characteristic mild odor. As an alkoxy silane, it is sensitive to moisture and can hydrolyze in the presence of water, releasing methanol. The compound exhibits moderate volatility and is generally soluble in organic solvents while being reactive with water due to its methoxy functional groups.

Cyclohexyl-dimethoxy-methylsilane is primarily used as a coupling agent and adhesion promoter in various industrial applications. It serves to improve bonding between organic polymers and inorganic surfaces such as glass, metals, and minerals. Common applications include surface treatment of fillers, primers for coatings, sealants and adhesives formulation, and as a crosslinking agent in silicone-based materials and composites.

Cyclohexyl-dimethoxy-methylsilane should be handled with appropriate personal protective equipment including chemical-resistant gloves, safety goggles, and protective clothing due to its Skin Irritant Category 2 classification. Work in well-ventilated areas or under fume hoods to avoid inhalation. Prevent skin and eye contact, and ensure emergency shower and eyewash stations are accessible. Use non-sparking tools and avoid sources of ignition during handling operations.

Cyclohexyl-dimethoxy-methylsilane should be stored in tightly sealed containers in a cool, dry, well-ventilated area away from moisture and heat sources. Keep containers away from incompatible materials and ensure proper labeling with GHS pictograms GHS07 and GHS09. Store in original containers made of compatible materials, maintain temperatures below 25°C when possible, and protect from direct sunlight to prevent degradation and maintain product stability.

In case of skin contact with cyclohexyl-dimethoxy-methylsilane, immediately remove contaminated clothing and wash the affected area thoroughly with soap and water for at least 15 minutes. For eye contact, flush immediately with clean water for at least 15 minutes and seek medical attention. If inhaled, move to fresh air immediately. Remove from exposure and seek medical attention if irritation persists, as the substance is classified as a skin irritant.

Cyclohexyl-dimethoxy-methylsilane must be disposed of in accordance with local, national, and international waste regulations as it is classified under ADR Class 9. Contact licensed waste disposal companies for proper treatment and disposal. Do not discharge into drains, soil, or water bodies due to its Aquatic Chronic Category 2 classification. Small quantities may require neutralization or incineration at authorized facilities under controlled conditions.

Cyclohexyl-dimethoxy-methylsilane is classified as ADR Class 9 (Miscellaneous dangerous goods), Packing Group III for transportation purposes. It requires appropriate packaging, labeling with Class 9 labels, and proper documentation including transport documents. Vehicles must comply with ADR regulations for Class 9 substances. Ensure containers are properly secured, sealed, and marked according to dangerous goods transport requirements for road transport within Europe.

Cyclohexyl-dimethoxy-methylsilane is subject to REACH regulation and must be registered for import/manufacture in quantities above 1 tonne per year in the EU. It is not classified as a Substance of Very High Concern (SVHC). The substance falls under CLP regulation with required hazard classification as Skin Irritant Category 2 and Aquatic Chronic Category 2, requiring appropriate labeling with warning signal word and GHS pictograms GHS07 and GHS09.

Cyclohexyl-dimethoxy-methylsilane is available through OYSI, a specialized European distributor of technical chemicals serving industrial customers across Europe. OYSI provides this organosilicon compound with full regulatory compliance, proper documentation, and technical support. As a professional chemical distributor, OYSI ensures quality products meeting industry standards and can provide certificates of analysis, safety data sheets, and regulatory documentation required for industrial applications.