Question

Write the equation for preparation of silicones.

Answer 1

Silicones are produced from pure silicon by the reduction of silicon dioxide (silica) in the form of sand with carbon at high temperatures:

The production of silicones from silicon takes place in three stages:

a) synthesis of chlorosilanes

b) hydrolysis of chlorosilanes

c) condensation polymerization.

[SiO2(s)+2C (s) --> Si(s) + 2CO (g)]