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Al2O3 has the chemical formula Al2O3. Aluminum oxide, also known as bauxite, is used in materials science and ceramics.
Aluminum Oxide Properties
Alumina (aluminium dioxide) is a hard compound that has the chemical formula Al2O3. Alumina, an amphoteric alloy, can be reacted with alkali and form aluminate or it can be reacted with acid to produce aluminum salt of that acid.
Aluminum oxide is the typical amphoteric compound (corundum has an alpha shape and is the densest hexagonal packing. It is an inert material, slightly soluble both in acid and in alkali and corrosion-resistant). Aluminum oxide dissolves in alkaline or inorganic solutions but is insoluble in water.
Alumina is made up of over 10 crystals. There are three main types: b, g, and a, Al2O3 (corundum). Different structures are characterized by different properties. They almost entirely transform into a – Al2O3 when heated above 1300degC.
Applications of Aluminum Oxide
Aluminum oxide is the main raw material used for electrolytic aluminum production. But many other sectors, such as electronic products, petroleum, chemicals refractories ceramics plastics textiles and papermaking also require oxidation.
The price of metallurgical oxide is significantly higher than the non-metallurgical version.
Due to its excellent properties such as high melting point and hardness, wear resistance and corrosion resistance, ultra-fine high-purity aluminum oxide can be used in a variety of applications including: light-transmitting sintered bodies, phosphors carrier, single crystal materials and advanced porcelains.
The high-purity series of aluminum oxides with a purity of 99.995% is mainly used in the production and processing for LED artificial crystals, PDP PDPs, high-performance ceramics and other materials. The raw material for sapphire crystal can be powder, granules or blocks, depending on the requirements.
99.99% high purity aluminum oxide is used primarily in high pressure sodium lamps, new luminescents materials, special coatings, three primaries colors, catalysts, and certain high performance materials.
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