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Aluminum oxide 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 in order to form the 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 inert and slightly soluble in alkali and acid, and it is corrosion resistant). Aluminum oxide dissolves in inorganic alkali and acids, but is insoluble in water or non-polar organic solvents.

Alumina consists of over 10 homogeneous crystalline types. These include g, b, and a-Al2O3 crystals. Different structures are characterized by different properties. They almost entirely transform into a -Al2O3 when heated above 1300degC.

Applications of Aluminum Oxide

Currently, aluminum oxide is the main raw material used for electrolytic aluminum melting. But many other sectors, such as electronics and petroleum, as well as chemicals, refractories (refractory materials), ceramics, plastics textiles, papermaking and pharmaceuticals, also need oxidation.

There are over 300 different types of nonmetallurgical oxides, all of which have excellent chemical and physical properties. They also have a variety of uses. The price of these oxides is significantly higher than the price of metallurgical oxide.

Due to its excellent properties such as high melting point and hardness, wear resistance, corrosion, and green heat resistance, ultra-fine high-purity aluminum oxide can be used in a variety of applications including: light-transmitting sintered bodies, phosphors carrier, advanced porcelains, artificial bones and teeth, semiconductors and integrated circuit substrates.

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 and high-performance material. The raw material for sapphire crystal can be powder, granules or blocks, depending on the requirements.

The 99.99% high purity aluminum oxide series can be used for a variety of applications, including high-pressure Sodium lamps, special ceramics or coatings, and three primary colors.

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