1,3-Diethoxy-1,1,3,3-tetramethyldisiloxane(CAS: 18420-09-2)

1,3-Diethoxy-1,1,3,3-tetramethyldisiloxane is a colorless, viscous liquid with a high boiling point and low volatility. It has a molecular weight of approximately 306.4 g/mol. The compound is soluble in common organic solvents but has limited water solubility. Chemically, it is less reactive compared to other organosilicon compounds, but it can undergo hydrolysis under acidic conditions. It is used as a stabilizer and as a coupling agent in various applications.

1,3-Diethoxy-1,1,3,3-tetramethyldisiloxane is typically synthesized through the reaction of tetramethyldiylidene and ethoxytris(dimethylsilyl)germane. The synthesis involves the condensation of these two precursors in the presence of a suitable catalyst. The yield is generally high, and the product has good selectivity and purity.

1,3-Diethoxy-1,1,3,3-tetramethyldisiloxane is utilized in various industries. It is commonly used as a stabilizer and coupling agent in pharmaceuticals, polymers, and sensors. Additionally, it plays a role in semiconductor manufacturing as a cleaner and in the synthesis of organosilicon compounds. Its versatility makes it a valuable chemical across multiple sectors.

When handling 1,3-Diethoxy-1,1,3,3-tetramethyldisiloxane, it is important to use personal protective equipment (PPE) such as gloves, safety glasses, and a laboratory coat. Work should be performed in a well-ventilated area or a fume hood to minimize inhalation risks. Spills should be cleaned up immediately using appropriate absorbent materials. Always refer to the Safety Data Sheet (SDS) for detailed handling and disposal instructions. Storage should be in a cool, dry place away from combustibles.