Methoxy(dimethyl)octadecylsilane(CAS: 71808-65-6)

Methoxy(dimethyl)octadecylsilane is a clear, colorless to light yellow liquid with a molecular weight of approximately 416.56 g/mol. It is poorly soluble in water but miscible with organic solvents. Chemically, it is stable but exhibits low reactivity under normal conditions. It is typically used for its hydrophobic surface modification properties.

Methoxy(dimethyl)octadecylsilane is usually synthesized through the reaction of 1-octadecene with dimethoxydimethylsilane in the presence of a Lewis acid catalyst such as boron trifluoride. The process involves controlled conditions to achieve high selectivity and yield, with the product undergoing purification to remove unreacted starting materials.

Methoxy(dimethyl)octadecylsilane is widely used in the pharmaceuticals, polymers, and semiconductors industries. It is particularly valued for its ability to modify surfaces to improve adhesion, reduce friction, and enhance stability in various applications.

When handling Methoxy(dimethyl)octadecylsilane, it is essential to use appropriate personal protective equipment (PPE) such as gloves, goggles, and a lab coat. Work should be done in a well-ventilated area or fume hood to minimize inhalation risk. Spills should be cleaned up using appropriate absorbents, and the area should be thoroughly ventilated. Refer to the Safety Data Sheet (SDS) for additional handling and disposal information.