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Overview of spherical alumina Al2O3 powder
Alumina is an inorganic substance with the chemical formula Al2O3. It is a high hardness compound also known as bauxite in mining, ceramics and materials science. It is a water-insoluble white solid, odorless, tasteless, and very hard in nature. Moisture absorption but not deliquescence (not hygroscopic after burning).
What are the advantages of alumina?
Alumina is a wear-resistant advanced technical ceramic material commonly used in a variety of industrial applications. It has high hardness and wear resistance, low erosion, high temperature resistance, corrosion resistance and biological inertness. Additionally, it can be highly polished, making it suitable for precision sealing applications such as pumps and pistons. Alumina is an excellent high temperature ceramic material due to its high temperature stability. It is the most commonly used high-grade ceramic with a purity of 95-99.9.
How is alumina Al2O3 powder produced?
Spherical alumina is produced by high temperature melt injection method, with high spheroidization rate and high α-phase alumina content.

Application of alumina Al2O3 powder
1. Paint: enamel paint, wear-resistant paint, plasma spraying.
2. Ceramics: transparent ceramics, bioceramics, alumina ceramics.
3. Petrochemical products: high-efficiency catalysts, catalyst carriers, and automobile exhaust purification materials.
4. Polishing materials: sub-micron/nano-level abrasive materials, single-crystal silicon wafer polishing, and precision polishing materials.
5. Lighting: long afterglow phosphor raw materials and rare earth tricolor phosphor raw materials, high pressure sodium lamps, LED lamps, etc.
6. Electronic products: integrated circuit substrates, single crystal materials, far-infrared materials.
7. Cosmetics: cosmetic fillers.
8. Inorganic membrane materials.
Alumina powder price
The price of alumina powder will change randomly due to factors such as production cost, transportation cost, international situation, exchange rate, supply and demand of alumina powder. Tanki New Materials Co., Ltd. aims to help industries and chemical wholesalers find high-quality, low-cost nanomaterials and chemicals by providing a full range of customized services. If you are looking for Alumina Powder, please feel free to send an inquiry to get the latest price of Alumina Powder (sales@ozbo.com).
Alumina powder supplier
As a global supplier of alumina powders, Tanki New Materials Ltd. has extensive experience in the performance, application and cost-effective manufacturing of advanced and engineered materials. The company has successfully developed a series of powder materials (molybdenum disilicide, alumina, calcium silicide, iron boride), high-purity targets, functional ceramics and structural devices, and provides OEM services.
If you are looking for high quality alumina powder, please feel free to contact us and send an inquiry. (sales@ozbo.com).
| Technical Parameter of Spherical Aluminum Oxide Al2O3 Powder: | ||||
| Test Items | Unit | Typical value | Test Method | |
| Chemical Analysis | Al2O3 | % | 99.7 | ICP |
| Na2O | ppm | 240 | ICP | |
| SiO2 | ppm | 184 | ICP | |
| Fe2O3 | ppm | 120 | ICP | |
| Ionic Impurities | Na+ | ppm | 56.3 | Atomic Absorption Spectrometer |
| Cl- | ppm | 1.4 | Auto Electric Potential Titrator | |
| Fe++ | ppm | 17.6 | IC | |
