Silica or Silicon Oxide With The Chemical Formula SiO2

Silica Silica or silicon oxide with the chemical formula SiO2 is the most abundant oxide compound in the Earth’s crust. Silica is present in nature in free form or in combination with other oxides. In general, the uses of silica are: Glassmaking, porcelain, ferrosilicon production, ceramics, lime sand brick production, casting, sodium silicate production, production of other silica materials, as a semiconductor in the electronics industry and glass wool production. Significant amounts of crushed sandstone are used as building materials. The silica used in each of these industries must have a certain quality.The chemical composition, mineralogical structure and physical properties of silica determine its quality and uses in each of these industries. The chemical composition of silica is actually the percentage of SiO2 in the rock as well as the percentage of each of the other oxides that are usually present with SiO2 in various deposits. If the percentage of each of them exceeds a certain limit, its use in various industries will be limited or impossible. In addition to the percentage of SiO2, the mineralogical structure of the rock also plays an important role in determining its quality and uses, because SiO2 may be present in the form of various silicates, so this issue will determine the mineralization method and how to remove impurities. The physical properties of silica will also be affected in the same way suitable for crushing, granulating the produced silica powder and determining the uses of the produced powder. Application of silica in industries Enameling: Silica is a constituent of glass, it is combined with materials such as feldspar, nepheline syenite, soda, etc. to make different types of silica glass. Ceramics: Quartz is used in the manufacture of various types of ceramics and sanitary ware.