- Classification: Alumina
- CAS No.: 1344-28-1
- Other Names: Corundum
- MF: al2o3
- EINECS No.: 215-691-6
- Place of Origin: Shanghai, China (Mainland)
- Grade Standard: Agriculture Grade, Electron Grade, Industrial Grade, Reagent Grade
- Purity: 99%
- Appearance: odorless white powder
- Application: Filler,Catalysis,Purification,Abrasive,Composite fiber.etc.
- Brand Name: YUANTAI
- Model Number: Yuantaiao081
- Colour: White
- State: Powder
- Other purposes: electrical insulator,dosimeter,Boiling chips,Coating suspensions.etc
Packaging & Delivery
|Packaging Details:||40KG/woven bag.|
|Delivery Detail:||Within 15 days after down payment received|
Aluminium oxide is a chemical compound of aluminium and oxygen with the chemical formula Al2O3. It is the most commonly occurring of several aluminium oxides, and specifically identified as aluminium(III) oxide. It is commonly called alumina, and may also be called aloxide, aloxite, or alundum depending on particular forms or applications. It commonly occurs in its crystalline polymorphic phase α-Al2O3, in which it comprises the mineral corundum, varieties of which form the precious gems ruby and sapphire. Al2O3 is significant in its use to produce aluminium metal, as an abrasive owing to its hardness, and as a refractory material owing to its high melting point.
Al2O3 is an electrical insulator but has a relatively high thermal conductivity (30 Wm−1K−1) for a ceramic material. Aluminium oxide is completely insoluble in water. In its most commonly occurring crystalline form, called corundum or α-aluminium oxide, its hardness makes it suitable for use as an abrasive and as a component in cutting tools.
Aluminium oxide is responsible for the resistance of metallic aluminium to weathering. Metallic aluminium is very reactive with atmospheric oxygen, and a thin passivation layer of aluminium oxide (4 nm thickness) forms on any exposed aluminium surface.This layer protects the metal from further oxidation. The thickness and properties of this oxide layer can be enhanced using a process called anodising. A number of alloys, such as aluminium bronzes, exploit this property by including a proportion of aluminium in the alloy to enhance corrosion resistance. The aluminium oxide generated by anodising is typically amorphous, but discharge assisted oxidation processes such as plasma electrolytic oxidation result in a significant proportion of crystalline aluminium oxide in the coating, enhancing its hardness.
Aluminium oxide was taken off the United States Environmental Protection Agency's chemicals lists in 1988. Aluminium oxide is on EPA's Toxics Release Inventory list if it is a fibrous form.
2.Details about our al2o3
Total Capacity:6000 tons per year
Application: Filler,Catalysis,Purification,Abrasive,Composite fiber,electrical insulator,dosimeter,Boiling chips,Coating suspensions.etc
3.Our strength and capability
Shanghai Yuantai Chemical Products Co.,Ltd which was founded in April 2009.Main products including titanium dioxide,manganese carbonate,chlorinated paraffin,etc.We have several production bases,produce high quality products.With professional research and technical, management personnel, strong technical strength and quality management methods, we achieved the advantage in the industry and market leading position after a long period of accumulation ,construction and development.Multiple products have been exported to Brazil, Spain, Egypt, Japan and other parts of the world.Company implement GMP management and use advanced testing equipment, which control the whole production process from raw materials to finished goods and customer services, guarantee good product quality.
Our acquaintance is predestined relationship.“YUANTAI”series of products are welcomed by the market with reliable quality,stable performance and high-quality service. Our company's aim is “integrity win-win and mutual benefit ”, and actively explore the market,gain worldwide friends.
Our goal: to be a pioneer in the industry
Our aim: to provide customer with quality products and services
Our spirit: unity and hard work to break through ourselves
Our criteria: integrity win-win and mutual benefit
Welcome to Shanghai Yuantai Chemical!