
High Quality chlorodimethylsilane with the CAS number 1066 - 35 - 9 is a significant chemical compound. It has a molecular formula of C₂H₇ClSi. The molar mass of this product is approximately 94.61 g/mol. Chlorodimethylsilane is a colorless to light - yellow liquid with a pungent odor. It has a density of about 0.866 g/mL at 25 °C. The boiling point of chlorodimethylsilane is around 35 - 37 °C, and its flash point is - 28 °C. This compound is highly flammable and reacts violently with water, releasing hydrogen chloride gas.
Chlorodimethylsilane is widely used in the synthesis of various silicones. It serves as a key raw material for the production of dimethylsilicone polymers. These polymers have excellent heat - resistance, weather - resistance, and electrical insulation properties, making them suitable for use in many industries. For example, in the electronics industry, dimethylsilicone polymers are used as insulating materials for electronic components. In the automotive industry, they are used for gaskets and seals due to their high - temperature stability. Additionally, chlorodimethylsilane can be used in the surface modification of materials. It can react with the hydroxyl groups on the surface of materials to form a hydrophobic layer, which improves the water - repellency and chemical resistance of the materials.
When using chlorodimethylsilane, it is crucial to follow strict safety procedures. First, it should be stored in a cool, dry, and well - ventilated place away from sources of ignition. Before use, make sure the reaction environment is dry because it reacts with water. When handling, use appropriate personal protective equipment, including gloves, goggles, and a respirator. In a laboratory or industrial setting, it is usually added drop - by - drop to a reaction mixture under an inert gas atmosphere, such as nitrogen or argon, to prevent oxidation and reaction with moisture in the air. The reaction temperature and time should be carefully controlled according to the specific reaction requirements.
Case 1: In a silicone rubber manufacturing company, chlorodimethylsilane was used as a starting material to produce high - performance silicone rubber. The company added chlorodimethylsilane to a reaction vessel containing other silane monomers and a catalyst. The reaction was carried out at a temperature of 60 - 80 °C under nitrogen protection. After a series of polymerization reactions, high - quality silicone rubber was obtained. This silicone rubber was then used to manufacture automotive engine gaskets. The gaskets showed excellent heat resistance and sealing performance, which significantly improved the reliability of the engines.
Case 2: A research institution was working on the surface modification of glass substrates. They dissolved chlorodimethylsilane in an organic solvent and then dipped the glass substrates into the solution. After a certain period of reaction, a hydrophobic layer was formed on the surface of the glass. The modified glass had improved water - repellency, which made it easier to clean and more resistant to dirt. This type of modified glass has potential applications in architectural glass and optical devices.
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