Silicon is the main component of silica sand.
The chemical stability of silica gel is very strong, and it will not react unless it meets strong alkali. In particular, medical silicone rubber is often used for breast augmentation, nose pad and so on. In daily life, nipples, pressure cooker sealing rings, etc. They are all silicone products.
Silica gel will be reduced to silica or silica sand when burned in fire, which is harmful to human body. You can use it safely.
Extended data:
The main chain of silicone is very flexible, and the intermolecular force is much weaker than that of hydrocarbons. Therefore, compared with hydrocarbons with the same molecular weight, it has lower viscosity, weaker surface tension, smaller surface energy and stronger film-forming ability. This low surface tension and low surface energy are the main reasons for many applications: excellent properties such as hydrophobicity, defoaming, foam stability, anti-sticking, lubrication and glazing.
Use of silicone rubber
Because of these excellent properties, silicone has a wide range of applications. It is not only used as a special material for aviation, cutting-edge technology and military technology departments, but also used in various departments of the national economy. Its application scope has been extended to: architecture, electronics and electricity, textiles, automobiles, machinery, leather and paper, chemical industry and light industry, metals and coatings, medicine and medical treatment.
Baidu encyclopedia-silica gel