With the rapid development of the organosilicon industry, the output of organosilicon chlorosilane monomers is also increasing. It is estimated that the total production capacity of domestic organosilicon monomer manufacturers will be about 2500kt/a by the end of this year. Hexamethyldisiloxane is an important raw material for organosilicon. It is often used as an end-capping agent in the production of silicone oil, or used in silicone rubber, pharmaceuticals, gas chromatography stationary fluids, analytical reagents, water repellents and medical treatments. Cleaning agent for electronic components, etc. The Si-O-Si bond in the molecular chain structure of hexamethyldisiloxane has a high chemical bond energy (460. 5 kJ/mol), and the polysiloxane prepared from it as a capping agent has better Thermal stability and chemical stability.

Hexamethyldisiloxane is an important organosilicon compound and is widely used in the fields of organosilicon chemistry and organic synthesis. At the same time, hexamethyldisilazane is used as a capping agent, cleaning agent and film release agent, mainly used in the production of organic chemicals and pharmaceutical chemicals; in addition, hexamethyldisilazane is used for the production of hexamethyldisilazane The solvent can greatly reduce the production cost of hexamethyldisilazane and increase the yield.

Hexamethyldisiloxane    is a colorless and transparent liquid. It is an important organosilicon compound and has a wide range of applications in the fields of organosilicon chemistry and organic synthesis. At present, the preparation of hexamethyldisilazane is generally made by using trimethylchlorosilane as a raw material and reacting with ammonia gas in an inert organic solvent. The manufacturers of trimethylchlorosilane and hexamethyldisilazane used as raw materials generally purchase them, and the cost is relatively high. For the preparation of trimethylchlorosilane, currently, methyl chloride and silicon powder are directly synthesized under the action of a catalyst, and then the pure product is obtained by fractional distillation.

Hexamethyldisiloxane is not only used as a raw material for the production of downstream organic silicon products, but is now more directly used in the cleaning industry. As a representative of cyclic and linear volatile methylsiloxanes (VMSs), hexamethyldisiloxane is environmentally friendly and does not destroy the ozone layer like fluorocarbon cleaners. In the United States, volatile methyl siloxane silicone oil is a product exempted from volatile organic compound (VOC) regulations and can be used as a substitute for solvents restricted by regulations, making the formulation more beneficial to human health and environmental protection. It can be used as a substitute for cleaning agents for precision equipment used in electronics, defense and aerospace industries.

In addition, hexamethyldisiloxane is widely used in the pharmaceutical industry, gas chromatography analysis, bonding aids for photoresists in the semiconductor industry, additives in the rubber industry, and surface treatment agents for diatomaceous earth and white carbon black. , Is also one of the silylation reagents. It can be seen that hexamethyldisilazane has important industrial use value and has good application prospects.

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