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[Chemical Knowledge]：What are the upstream raw materials for dimethyldichlorosilane? What do the downstream products contain?

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Dimethyldichlorosilane (CH3)2SiCl2 is an important organic silicon compound, which is widely used in the field of chemical production. The following are the upstream and downstream related products of dimethyldichlorosilane:

Upstream products:

1. Metal silicon: Metal silicon is one of the main raw materials of dimethyldichlorosilane, and dimethyldichlorosilane is obtained by reacting with methyl chloride.

2. Methyl chloride: Methyl chloride, as another raw material, reacts with silicon metal to give dimethyldichlorosilane.

downstream products:

1. silicone oil: dimethyl dichlorosilane can be hydrolyzed to generate octamethylcyclotetrasiloxane (D4), and D4 can be further polymerized to obtain silicone oil with different viscosities. Silicone oil has excellent heat resistance, oxidation resistance, hydrophobicity and electrical insulation, and is widely used in machinery, electronics, textiles, chemicals and other fields.

2. Silicone rubber: The hydrolysis product of dimethyldichlorosilane can also be used to prepare silicone rubber. Silicone rubber has the characteristics of high temperature resistance, low temperature resistance, oxidation resistance, and corrosion resistance. It is widely used in sealing, insulation, and earthquake resistance.

3. Silicone resin: The hydrolysis product of dimethyldichlorosilane can be further polymerized to obtain silicone resin. Silicone resin has excellent heat resistance, cold resistance, weather resistance, electrical insulation and hydrophobicity, and is widely used in coatings, sealants, electronic devices and other fields.

In short, dimethyldichlorosilane, as an important organosilicon compound, has a wide range of applications in the field of chemical production, and its upstream and downstream related products also have a wide range of uses.

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