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News > Dynamic industry > Trimethylsilanol

Trimethylsilanol

In the field of fine chemicals, trimethylsilanol has become an essential raw material across many industries due to its unique chemical properties and broad application potential. Its CAS number is 1066-40-6, the chemical name is trimethylhydroxysilane, with the molecular formula C₃H₁₀OSi and a molecular weight of 90.196.

In terms of physicochemical properties, trimethylsilanol is a colorless, transparent liquid. At 20°C, it has a density of 0.8144 g/cm³, a purity of no less than 95%, and a flash point of only 4°C. It is classified as a Class II hazardous substance with UN number 1993. For packaging and storage, it is supplied in 1 kg square metal solvent containers to ensure product safety and stability. During storage, containers should be tightly sealed and kept in a cool, well-ventilated area. After opening, reseal carefully, store upright, and keep away from ignition sources and heat. The shelf life is up to 12 months.

In application, trimethylsilanol plays an indispensable role. As a common silanol, it serves as an ideal end-capping agent for linear polysiloxanes. By introducing hydroxyl groups, it can effectively regulate the molecular structure and properties of polysiloxanes. It is widely used in the synthesis of silicone materials and polymer modification, helping to produce high-performance sealants, coatings, lubricants, and other products.

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