What is Silicon dioxide? Silica is an inorganic compound with the chemical formula of SiO2. Silicon and oxygen atoms are arranged in long-range order to form crystalline silica and short-range order or long-range disorder arrangement to form amorphous silica. In silicon dioxide crystal, a silicon atom is located in the center of a regular tetrahedron, and four oxygen atoms are located at the four corners of the regular tetrahedron. Many of these tetrahedrons are connected by oxygen atoms at the corners, and each oxygen atom is shared by two tetrahedrons; that is, each oxygen atom is combined with two silicon atoms. The simplest form of silicon dioxide is SiO2, but SiO2 does not represent a simple molecule (it only represents the ratio of the number of atoms of silicon and oxygen in the silicon dioxide crystal). Pure natural silica crystal is a hard, brittle, insoluble, colorless, and transparent solid which is often used to manufacture optical instruments.
The chemical formula of silicon dioxide is SiO2. Silicon dioxide has two forms: crystalline and amorphous. Silica existing in nature, such as Shi Ying and quartz sand, is collectively referred to as silica. Pure Shi Ying is a colorless crystal, large and transparent prismatic Shi Ying crystal is called crystal; purple crystal with trace impurities is called amethyst; and light yellow, golden and brown crystal is called smoky crystal. Chalcedony, agate, and jasper are colored Shi Ying crystals containing impurities. Sand is Shi Ying's fine particles mixed with impurities. Opal and diatomite are amorphous silica. Silicon dioxide has a wide range of uses, mainly used to make glass, water glass, pottery, enamel, refractory, aerogel felt, ferrosilicon, molding sand, elemental silicon, cement, etc. In ancient times, silicon dioxide was also used to make glaze and carcass of porcelain. General stones are mainly composed of silicon dioxide and calcium carbonate. MoreaboutSilicon dioxide Chemical formula: SiO2 Molecular weight: 60.084 CAS：14808-60-7 Melting point: 1723℃ Boiling point 2230℃ Water solubility: insoluble Material structure of Silicon dioxide powder The properties of silicon and carbon are similar, but the properties of their oxides are quite different. CO2 is a molecular crystal, while SiO2 is an atomic crystal. SiO2 _ 2 is a three-dimensional network structure with a silicon-oxygen tetrahedron as the basic structure. In the crystal structure, four valence electrons of silicon atoms form four covalent bonds with four oxygen atoms, with Si atoms at the center of the regular tetrahedron and O atoms at the vertices of the tetrahedron. Each silicon atom is connected to four oxygen atoms, and each oxygen atom is connected to two silicon atoms. The smallest ring in the crystal consists of 12 atoms (6 silicon atoms and 6 oxygen atoms), each silicon is shared by 6 rings, and the number ratio of silicon and oxygen atoms in the crystal is 1:2. Uses of Silicon dioxide powder Silicon dioxide 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, silicon dioxide can also be used as a lubricant, which is an excellent flow promoter, mainly used as a lubricant, anti-sticking agent, 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 tablets. As a disintegrant, it can greatly improve the fluidity of particles, increase the bulk density, increase the hardness of the prepared tablets, shorten the disintegration time and improve the dissolution rate of drugs. It can be used as an internal desiccant in the manufacture of granules to enhance the stability of drugs. It can also be used as a filter aid, clarifier, defoamer and suspending agent, and thickener for liquid preparation. 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, Silicon dioxide 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.
