Aluminum Oxide Al2O3 CAS 1344-28-1

About Aluminium oxide powder:

The aluminium oxide formula is Al2O3. The aluminium oxide molar mass is 101.96 g/mol.

Al2O3 is an electrical insulator. It has a fairly high thermal conductivity to ceramic materials. The most common form of crystalline alumina is called corundum.

Alumina can provide activated, super-activated, acidic, alkaline and neutral grades and has flash grades, TLC, biomass purification, decolourization, dioxin analysis, PCB removal, pyrogen removal and biotechnology wide-pore forms. 

Aluminium oxidation is what makes aluminium resistant to corrosion. Aluminium has a high affinity for oxygen. When a new aluminium surface is exposed to air or any other oxidizing agent, it rapidly forms a thin, hard alumina film.

Oxide does not conduct electricity. However, certain oxides of perovskite structures have conductivity in the cathodes of solid oxide fuel cells and oxygen generation systems. They are compounds containing at least one oxygen anion and one metal cation. They are generally insoluble in aqueous solutions (water). They are very stable so that they can be used in ceramic structures, such as aluminium oxide ceramic bowls for the production of advanced electronic devices, and lightweight structural components used in aerospace and electrochemical applications, such as fuel cells.

Exhibits ionic conductivity. Metal oxides are basic acid anhydrides that can react with acids and strong reducing agents in redox reactions. Reactive chromatography grade alumina is used in lighting, photographic chromatography and various chromatographic separation techniques.

Alumina is usually available in most quantities immediately. High purity, sub-micron and nanopowder forms can be considered. Alumina can also be made into particles, pellets, powders, sputtering targets, tablets and nanopowders. Provide typical and customized packaging and other research, technical and safety (MSDS) data.

TRUNNANO is a trusted global aluminium oxide manufacturer and aluminium oxide, supplier. Feel free to inquire about the latest aluminium oxide price if you would like to buy aluminium oxide al2o3 powder in bulk.

How is Aluminium oxide produced?

The bauxite process produces aluminium oxide. The Bayer process is carried out in four steps. First, the bauxite is crushed, washed and dried, then dissolved with caustic soda at high temperatures. Next, the mixture is filtered to remove impurities called "red mud" and discarded appropriately. The remaining alumina solution is transferred to a high tank called a settler. In the sedimentation tank, the hot solution begins to cool, and aluminium hydroxide seeds (very small particles) are added. The aluminium hydroxide seeds stimulate the precipitation of solid aluminium hydroxide crystals. Aluminium hydroxide precipitates at the bottom of the tank and is removed. Finally, all remaining caustic soda in the aluminium hydroxide is washed and heated to remove excess water. After this process, alumina (alumina) appears as a fine white powder. It looks like sugar used in baking, but it is hard enough to scratch the glass plate.

Application of Aluminium oxide:

Most of the alumina produced is used to form aluminium metal. Oxygen usually reacts with metallic aluminium to catalyze corrosion. However, when combined with oxygen to form alumina, it forms a protective coating and prevents further oxidation. This increases the strength and makes the material less prone to deterioration. Alumina is mainly used as analytical reagents, dehydration of organic solvents, adsorbents, organic reaction catalysts, abrasives, polishing agents, raw materials for smelting aluminium, and refractory materials.

Industries that use alumina include:

Medical industry

Due to the hardness, biological inertness and chemical properties of alumina, it is used for hip replacement surgery prostheses, bionic implants, artificial eye substitutes, tissue reinforcement materials, crowns, abutments, bridges and other dental implants. The preferred material of the bearing. It is also used in laboratory equipment and tools such as crucibles, furnaces and other laboratory appliances.

Military and protective equipment

The strength and lightweight properties of alumina help to strengthen body armour, such as breastplates and armour for cars and aeroplanes, which is its largest market. Alumina is also used to synthesize sapphire bulletproof windows and bulletproof systems.

Electrical and electronic industry

Its high melting point and high boiling point, as well as its excellent heat resistance, make alumina an ideal material for high-temperature furnace insulators and electrical insulators. Alumina film is also a vital component in the microchip industry. Its other uses include spark plug insulators, micro-electric substrates and insulating heat sinks.

Brown aluminium oxide blast media is a very good medium because brown aluminium oxide is one of the hardest abrasives. 

Aluminium oxide sandpaper is used for general-purpose grinding of paints, wood and metals.

Performance of Aluminum Oxide Al2O3 Powder：

The aluminium oxide chemical formula is Al2O3. It is a high-hardness compound with an aluminium oxide melting point of 2054°C and a boiling point of 2980°C. It is an ion crystal that can be ionized at high temperatures and is commonly used to manufacture refractory materials. It is a white solid insoluble in water, odourless, tasteless, and extremely hard.

Technical Parameter of Aluminum Oxide powder Al2O3 Powder：

Storage Condition of Aluminum Oxide Al2O3 Powder:
Aluminum Oxide Al2O3 Powder should be stored in dry, cool and sealing of the environment, can not be exposure to air, in addition, should avoid the heavy pressure, according to ordinary goods transportation.

Packing & Shipping of  Aluminum Oxide Al2O3 Powder:
It is packed in double plastic bags inside, which can be filled with argon in a vacuum; it can be vacuumed and filled with argon for protection.
Aluminum Oxide Al2O3 Powder packing: vacuum packing, 100g, 500g or 1kg/bag, 25kg/barrel, or as your request.
 Aluminum Oxide Al2O3 Powder shipping: could be shipped out by sea, by air, by express as soon as possible once payment receipt.


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If you are looking for high-quality Aluminum Oxide Al2O3 powder, please feel free to contact us and send an inquiry. ([email protected])