KIPPING's Grignard method contributed to the birth of a new polymer, silicone. However, as you can see below, the process is complicated and difficult, and magnesium, which is not included in the product, must be used in the intermediate process. In addition, magnesium chloride is generated during the process, and in order to recover it, chlorine and magnesium must be reduced through electrolysis. In addition, this process uses ether as a solvent, and ether is volatile and flammable, so it is dangerous to use in large quantities. In addition, there is a problem that a large amount of magnesium chloride and hydrochloric acid by-products must be processed to obtain methyl silicone.
Silicones are made from quartz sand, a raw material available in practically unlimited quantities.
From Sand to Silicone
