Silicon dioxide

Silicon dioxide, the chemical formula SiO2, is a common oxide. It is widely found in nature and is a major component of many rocks, quartz and silicate minerals. Silica has excellent physical and chemical properties such as high melting point, high hardness, excellent chemical stability and solubility, and is widely used in the fields of electronics, building materials, chemical industry, textile and medicine. Its main forms are crystalline silicon, colloidal silica and aerogels.

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Product nature

Silicon dioxide is a colorless and odorless solid substance with a density of 2.2-2.7g/cm³, a melting point of 1713 ° C and a boiling point of 2230 ° C. It is a substance that is insoluble in water and most organic solvents, but reacts with hydrofluoric acid, alkali and sodium hydroxide. Silica has good insulation, heat resistance and chemical stability, and is also an important raw material for many materials, such as silicate pigments, ceramics and glass. In industry, it is also widely used in the manufacture of silicon wafers and optical fibers

Scope of application

Electronics industry: Manufacturing silicon wafers, integrated circuits, semiconductor materials, etc.
Optoelectronics industry: manufacturing optical glass, optical fiber, solar cells, etc.
Chemical industry: as active agent, adsorbent, flocculant, etc.
Glass industry: As an additive to glass, it can improve the hardness and heat resistance of glass.
Ceramic industry: As a raw material of ceramics, it can improve its hardness, wear resistance and heat resistance when making ceramics.
Construction industry: Used in the production of quartz sand and quartz glass, but also used as fillers and reinforcing agents in building materials.
Medical industry: As a raw material for medical glass, it is widely used in surgical instruments, medical equipment, laboratory equipment and so on

Silicon dioxide

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