Silica sand

1. Product Concept:
Silica sand, also known as silicon dioxide or quartz sand, is a refractory granular material with quartz as its main mineral component and particle sizes ranging from 0.020mm to 3.350mm. Depending on the mining and processing methods, it is classified into artificial silica sand and natural silica sand, such as washed sand, scrubbed sand, and beneficiated (flotation) sand. Silica sand is a hard, wear-resistant, and chemically stable silicate mineral, with its primary mineral component being SiO2. Its color ranges from milky white to colorless and translucent, with a hardness of 7. It is brittle, has no cleavage, exhibits a conchoidal fracture, and has a greasy luster. Its relative density is 2.65, and it demonstrates significant anisotropy in chemical, thermal, and mechanical properties. It is insoluble in acids and slightly soluble in KOH solution, with a melting point of 1750°C. The colors include milky white, light yellow, brown, and gray, and silica sand possesses high refractory properties.

2. Scope of Application
(1) Glass: The main raw materials for flat glass, float glass, glass products (such as glass jars, glass bottles, glass tubes, etc.), optical glass, glass fiber, glass instruments, conductive glass, glass cloth, and special radiation-proof glass, among others.
(2) Ceramics and Refractory Materials: Raw materials for porcelain bodies and glazes, as well as high-silica bricks, ordinary silica bricks, and silicon carbide used in kilns.
(3) Metallurgy: Raw materials or additives and fluxes for silicon metal, ferrosilicon alloys, and silicon-aluminum alloys, etc.
(4) Construction: concrete, cementitious materials, road-building materials, artificial marble, materials for testing the physical properties of cement (i.e., cement standard sand), etc.
(5) Chemical industry: raw materials for silicon compounds and water glass, filler for sulfuric acid towers, amorphous silica micro powder
(6) Machinery: Main raw material for casting sand, grinding material.
(7) Electronics: High-purity metal silicon, optical fibers for communication, etc.
(8) Rubber, Plastic: Fillers (to improve wear resistance)
(9) Coating: Filler (can improve the acid resistance of the coating)
(10) Aviation and aerospace: Its intrinsic molecular chain structure, crystal shape, and lattice variation patterns endow it with high-temperature resistance, low thermal expansion coefficient, corrosion resistance, high insulation, piezoelectric effect, resonance effect, and unique optical properties.