Briefly Knowledge Silica
Silicone can be described as a highly active adsorption material, it belongs to the amorphous material, its chemical formula is mSiO2 · nH2O. Silicone water-insoluble and any solvent, non-toxic, odorless, chemically stable, and in addition to alkali, hydrofluoric acid does not react with any substance. But also various types of silica gel to produce because of the different methods will be the formation of different porous structure. And it is due to the chemical composition and physical structure of silica gel, which also determines that it has many other similar materials are not characteristics: high adsorption properties, chemical stability, good thermal stability, high mechanical strength, etc. . Silicone main component is silicon dioxide, chemically stable, non-toxic. In addition there is a strong adsorption capacity of silica gel, for the human skin can produce desiccation. If the silicone into the eyes, then we need to use a lot of water rinse, and seek medical treatment as soon as possible. The blue silicone because it contains a small amount of cobalt chloride, toxic, so be sure to try to avoid contact and inhalation of food and mouth, if the poisoning incident then we must find a doctor for treatment. Due to strong adsorption of quickly and effectively adsorb moisture within the sealed package, chemically stable, non-toxic characteristics of silica has; and the last few years to constant innovation and development, today's silicone has been widely used in the drug purification, DNA separated, dried food, high-quality cosmetics, high-precision electronics, beer purification, sewage purification, and advanced coatings and resin production or save and so on. In our daily lives and production activities, the silica is often used in the following areas: precision optical instruments, electrical and electronic packaging dry mold; leather drying aspect, placing it in leather, leather bags, shoes inside the can play a role in the drying shelf life; food drying regard, more common in on biscuits and fried foods to ensure food crisp; pharmaceutical drying regard, put in the bottle, to ensure drug prolong shelf life.