dimethyldiethoxysilane
Dimethyldiethoxysilane, also known as DMDEOS, is an organosilicon reagent with the chemical formula (CH₃)₂Si(OC₂H₅)₂. It appears as a clear, colorless liquid at room temperature and has a boiling point of about 110 °C and a melting point around –90 °C. The molecule contains two ethoxy groups attached to a silicon atom that also bears two methyl groups, making it a useful mono‑silane cross‑linking agent.
DMDEOS is commonly prepared by reacting chlorodimethylsilane with diethylaluminum chloride or through alkylation of dimethylchlorosilane with
In industrial and laboratory settings, DMDEOS serves as a precursor for polysiloxanes and silicone polymers. Its
Safety data indicate that DMDEOS is flammable and can irritate the skin, eyes, and respiratory tract. Adequate