By lql | 05 February 2023 | 0 Comments
What is the use of Silicon dioxide?
What is Silicon dioxide?
Silica dioxide is an inorganic substance with the chemical formula of SiO₂. The long-range ordered arrangement of silicon atoms and oxygen atoms forms crystalline silica, and the short-range ordered or long-range disordered arrangement forms amorphous silica.
Silica dioxide is an inorganic substance with the chemical formula of SiO₂. The long-range ordered arrangement of silicon atoms and oxygen atoms forms crystalline silica, and the short-range ordered or long-range disordered arrangement forms amorphous silica.
Nature is called silica. Silica (chemical formula: SiO₂) is an acidic oxide, and its corresponding hydrate is silicic acid. Silica is one of the most important compounds of silicon, and the natural silica existing on the earth accounts for about 12% of the mass of the crust. There are two kinds of crystalline silica and amorphous silica in nature. Crystalline silica can be divided into Shi Ying, tridymite, and Shi Ying due to its different crystal structures. Shi Ying is a colorless crystal, and Shi Ying, which is large and transparent, and prismatic, is called a crystal. If the crystals containing trace impurities have different colors, there are amethyst, tea crystal, ink crystal, etc.
Use of Silicon dioxide powder
Silica is the raw material for making glass, Shi Ying glass, water glass, optical fiber, important parts of the electronic industry, optical instruments, handicrafts, and refractories, and it is also an important material for scientific research.
In addition, silica can also be used as a lubricant, which is an excellent flow promoter, mainly as a lubricant, anti-adhesive, and flow aid. It is especially suitable for the granulation of oil and extracts drugs, and the prepared granules have good fluidity and compressibility. It can also be used as a glidant in direct compression. As a disintegrant, it can greatly improve the fluidity of granules, increase the bulk density, increase the hardness of the prepared tablets, shorten the disintegration time and increase the drug dissolution rate. Granules can be used as an internal desiccant to enhance the stability of drugs. It can also be used as a filter aid, clarifier, defoamer, suspending agent, and thickener of a liquid preparation.
Performance characteristics of Silicon dioxide powder
Physical features:
1.Density: 2.2 g/cm3
2.Melting point: 1723℃
3.Boiling point: 2230℃
4.Refractive index: 1.6
5.Change when heated: Melts with strong alkali when heated to form silicate
6.Solubility: insoluble in water, it can react with HF to form gaseous SiF4.
Chemical property:
1.Chemical properties are relatively stable. Does not react with water. It has high fire resistance, high-temperature resistance, low thermal expansion coefficient, high insulation, corrosion resistance, piezoelectric effect, resonance effect, and unique optical characteristics. It is an acidic oxide that does not react with ordinary acids. React with hydrofluoric acid to generate gaseous silicon tetrafluoride. React with a hot strong alkali solution or molten alkali to produce silicate and water. React with various metal oxides at high temperatures to generate silicate. Silica is inactive in nature, and it does not react with halogen, hydrogen halide, sulfuric acid, nitric acid, and perchloric acid except with hot, concentrated phosphoric acid.
2.Common concentrated phosphoric acid (or pyrophosphoric acid) can corrode silica at high temperatures and generate heteropoly acids. Melting borate or boric anhydride at high temperatures can also corrode silica. In view of this property, borate can be used as a fluxing agent in ceramic firing. Besides, hydrogen fluoride can also be an acid that can dissolve silica and generate water-soluble fluorosilicic acid.
Price of Silicon dioxide powder
Silicon dioxide powder particle size and purity will affect the product's price, and the purchase volume can also affect the cost of Silicon dioxide powder. A large amount of large amount will be lower. The price of Silicon dioxide powder can be found on our company's official website.
Silicon dioxide powder supplier
Luoyang Tongrun Nano Technology Co. Ltd. (TRUNNANO) Luoyang City, Henan Province, China, is a reliable and high-quality global chemical material supplier and manufacturer. It has more than 12 years of experience providing ultra-high quality chemicals and nanotechnology materials, including Silicon dioxide powder, nitride powder, graphite powder, sulfide powder, and 3D printing powder. If you are looking for high-quality and cost-effective Silicon dioxide powder, you are welcome to contact us or inquire any time.
Use of Silicon dioxide powder
Silica is the raw material for making glass, Shi Ying glass, water glass, optical fiber, important parts of the electronic industry, optical instruments, handicrafts, and refractories, and it is also an important material for scientific research.
In addition, silica can also be used as a lubricant, which is an excellent flow promoter, mainly as a lubricant, anti-adhesive, and flow aid. It is especially suitable for the granulation of oil and extracts drugs, and the prepared granules have good fluidity and compressibility. It can also be used as a glidant in direct compression. As a disintegrant, it can greatly improve the fluidity of granules, increase the bulk density, increase the hardness of the prepared tablets, shorten the disintegration time and increase the drug dissolution rate. Granules can be used as an internal desiccant to enhance the stability of drugs. It can also be used as a filter aid, clarifier, defoamer, suspending agent, and thickener of a liquid preparation.
Performance characteristics of Silicon dioxide powder
Physical features:
1.Density: 2.2 g/cm3
2.Melting point: 1723℃
3.Boiling point: 2230℃
4.Refractive index: 1.6
5.Change when heated: Melts with strong alkali when heated to form silicate
6.Solubility: insoluble in water, it can react with HF to form gaseous SiF4.
Chemical property:
1.Chemical properties are relatively stable. Does not react with water. It has high fire resistance, high-temperature resistance, low thermal expansion coefficient, high insulation, corrosion resistance, piezoelectric effect, resonance effect, and unique optical characteristics. It is an acidic oxide that does not react with ordinary acids. React with hydrofluoric acid to generate gaseous silicon tetrafluoride. React with a hot strong alkali solution or molten alkali to produce silicate and water. React with various metal oxides at high temperatures to generate silicate. Silica is inactive in nature, and it does not react with halogen, hydrogen halide, sulfuric acid, nitric acid, and perchloric acid except with hot, concentrated phosphoric acid.
2.Common concentrated phosphoric acid (or pyrophosphoric acid) can corrode silica at high temperatures and generate heteropoly acids. Melting borate or boric anhydride at high temperatures can also corrode silica. In view of this property, borate can be used as a fluxing agent in ceramic firing. Besides, hydrogen fluoride can also be an acid that can dissolve silica and generate water-soluble fluorosilicic acid.
Price of Silicon dioxide powder
Silicon dioxide powder particle size and purity will affect the product's price, and the purchase volume can also affect the cost of Silicon dioxide powder. A large amount of large amount will be lower. The price of Silicon dioxide powder can be found on our company's official website.
Silicon dioxide powder supplier
Luoyang Tongrun Nano Technology Co. Ltd. (TRUNNANO) Luoyang City, Henan Province, China, is a reliable and high-quality global chemical material supplier and manufacturer. It has more than 12 years of experience providing ultra-high quality chemicals and nanotechnology materials, including Silicon dioxide powder, nitride powder, graphite powder, sulfide powder, and 3D printing powder. If you are looking for high-quality and cost-effective Silicon dioxide powder, you are welcome to contact us or inquire any time.
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