Overview of Aluminium Oxide Powder (Al2O3)
The aluminum oxide formula is Al2O3. The aluminum oxide molar mass is 101.96 g/mol.
Al2O3 is an electrical insulator. It has a fairly high thermal conductivity compared 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, decolorization, dioxin analysis, PCB removal, pyrogen removal, and biotechnology wide-pore forms.
Aluminum oxidation is what makes aluminum resistant to corrosion. Aluminium has a high affinity for oxygen. When a new aluminum 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 they can be used in ceramic structures, such as aluminum oxide ceramic bowls for producing 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.
Performance of Aluminum Oxide Al2O3 Powder
The aluminum oxide chemical formula is Al2O3. It is a high-hardness compound with an aluminum 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, odorless, tasteless, and extremely hard.
Technical Parameter of Aluminum Oxide Powder Al2O3 Powder
testing index | unit | Tr-D100 | Tr-D200 | |
Chemical parameters | Al2O3 | % | ≥99.5 | ≥995 |
Fe | ppm | ≤8 | ≤8 | |
Cr | ppm | ≤1 | ≤2 | |
Mg | ppm | ≤1 | ≤2 | |
Cu | ppm | ≤1 | ≤2 | |
Ti | ppm | ≤1 | ≤2 | |
Na | ppm | ≤30 | ≤30 | |
Si | ppm | ≤20 | ≤20 | |
Ca | ppm | ≤1 | ≤1 | |
size parameter | mesh | 325 | 600 | |
Bulk density | — | g/m3 | 0.3-0.6 | 0.3-0.6 |
Specific surface area | — | m2/g | 2-10 | 10-20 |
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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.
FAQ
Q1
How to deposit alumina ceramics?
A: Deposition of alumina ceramics can be achieved by a variety of methods, including physical vapor deposition (PVD) and chemical vapor deposition (CVD). Physical vapor deposition uses heating or high-energy beam bombardment under vacuum conditions to vaporize the coating material into atoms, molecules or ions, and deposits a coating on the surface of the substrate through low-pressure gas or plasma. Chemical vapor deposition uses multi-component gases to react chemically on the surface of heated parts to obtain the required coating.
Direct copper plating (DPC) in the thick film process is also a deposition method. The surface of the substrate is metallized through surface deposition processes such as evaporation and magnetron sputtering.
Q2
Is aluminum oxide harmful?
A: Aluminum oxide itself is non-toxic, but when it enters the human body, it may undergo chemical changes to produce toxic substances, causing health risks. Long-term inhalation of high concentrations of aluminum oxide particles may cause inflammatory reactions and tissue damage in the lungs. In addition, when aluminum oxide enters the human body through the skin or respiratory tract, it may also cause local irritation or allergic reactions. Therefore, although aluminum oxide itself is non-toxic, it may have adverse effects on the human body under certain conditions or when exposed to large amounts for a long time.
Q3
How to clean alumina diamond plates?
A: For cleaning of aluminum oxide diamond plates, generally speaking, you can use mild detergent and soft cloth to wipe, avoid using too harsh chemical cleaners or scratching with hard objects to avoid damaging the surface. Specific cleaning methods may vary depending on product characteristics and usage environment.
Q4
What is the strength comparison between aluminum and alumina?
A: Aluminum oxide is a ceramic material with very high hardness and is one of the super-hard materials, with a hardness value between 9 and 9.5. Aluminum is a typical metal material with a relatively low hardness, generally between 2.5 and 3. Therefore, in terms of hardness, alumina is stronger than aluminum.
Q5
How to remove aluminum oxide layer?
A: The methods for removing the aluminum oxide layer mainly include mechanical removal and chemical removal. Mechanical removal uses mechanical force to scrape or grind away the aluminum oxide layer, but it may easily cause damage to the aluminum surface. The chemical removal rule is to remove the aluminum oxide layer through chemical reaction, but care must be taken to select appropriate chemical reagents to avoid damage to the aluminum matrix.
Aluminum Oxide Properties |
|
Other Names | alumina, aluminum (III) oxide, aluminum trioxide, Al2O3 powder |
CAS No. | 1344-28-1 |
Compound Formula | Al2O3 |
Molecular Weight | 101.96 |
Appearance | White Powder |
Melting Point | 2072 °C |
Boiling Point | 2977 °C |
Density | 3.95 g/cm3 |
Solubility in H2O | N/A |
Exact Mass | 101.948 g/mol |
Aluminum Oxide Health & Safety Information |
|
Signal Word | N/A |
Hazard Statements | N/A |
Hazard Codes | N/A |
Risk Codes | N/A |
Safety Statements | N/A |
Transport Information | NONH |