Aluminium Oxide
- CAS No.
- 11092-32-3
- Chemical Name:
- Aluminium Oxide
- Synonyms
- ALUMINIUM OXIDE;CORUNDUM;RUBY;BOILING CHIPS;AlO2;ALUMINA;ALUNDUM;SAPPHIRE;ALUMINA R;ALUMINA A
- CBNumber:
- CB00127809
- Molecular Formula:
- AlO2
Crystal structure
- Molecular Weight:
- 58.98
- MDL Number:
- MFCD00003424
- MOL File:
- 11092-32-3.mol
- MSDS File:
- SDS
| Melting point | 2040 °C(lit.) |
|---|---|
| Boiling point | 2977 °C |
| Density | 1.06 g/mL at 25 °C |
| form | powder |
| Water Solubility | Insoluble in water. |
| Exposure limits |
ACGIH: TWA 1 mg/m3 OSHA: TWA 15 mg/m3; TWA 5 mg/m3 |
| Dielectric constant | 4.5(Ambient) |
| Cosmetic Ingredient Review (CIR) | Aluminum oxide (11092-32-3) |
| InChI | InChI=1S/Al.2O |
| InChIKey | DGTWKHOKSKFICW-UHFFFAOYSA-N |
| SMILES | [Al](=O)=O |
| CAS DataBase Reference | 11092-32-3(CAS DataBase Reference) |
| EWG's Food Scores | 1 |
| ATC code | D10AX04 |
| UNSPSC Code | 11181511 |
| NACRES | NA.23 |
Aluminium Oxide price More Price(63)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Sigma-Aldrich | GF96001387 | Alumina washer,sizem8(ansi),length25pcs,outsidediameter24.48-25.40mm | 1ea | $642 | 2026-04-30 | Buy | |
| Sigma-Aldrich | GF92436026 | Alumina powder,45meanparticlesize(micron),weight100 g,purity99.9% | 1ea | $247 | 2026-04-30 | Buy | |
| Sigma-Aldrich | GF91715014 | Alumina sphere,0.5 mmdiameter,20pcs,tolerance+/-2.5um | 1ea | $278 | 2026-04-30 | Buy | |
| Sigma-Aldrich | GF90662744 | Alumina bolt,length25pcs,sizem5x30mm,headstylehexagonal | 1ea | $1690 | 2026-04-30 | Buy | |
| Sigma-Aldrich | GF90406492 | Alumina tube,outsidediameter26mm,wallthickness3 mm,length100mm | 1ea | $487 | 2026-04-30 | Buy |
Aluminium Oxide Chemical Properties, Uses, Production
Chemical Properties
Aluminum oxide is an electrical insulator but has a relatively high thermal conductivity for a ceramic material. It is thus used as insulating material in power electronics. Aluminum oxide is responsible for resistance of metallic aluminum to weathering. Since metallic aluminum is very reactive with atmospheric oxygen, a thin passivation layer of alumina (4 nm thickness) forms on any exposed aluminum surface, protecting the metal from further oxidation.
Occurrence
Corundum is the most common naturally occurring crystalline form of aluminium oxide.Rubies and sapphires are gem-quality forms of corundum, which owe their characteristic colours to trace impurities. Rubies are given their characteristic deep red colour and their laser qualities by traces of chromium.Sapphires come in different colours given by various other impurities, such as iron and titanium. An extremely rare δ form occurs as the mineral deltalumite.
Uses
Aluminium Oxide is used for the separation of both inorganic anions and acidic organic molecules such as acidic amino acids, aromatic acids and carboxylic acids. It is essential in protein extraction as a component in the preparation of tissues. It is also used as a grinding or blending agent. Aluminum oxide is a source of aluminum in reactions, an abrasive agent, and as a refractory material.
Health Hazard
Chronic inhalation of Al2O3 dusts may cause lung damage.
Structure and conformation
The most common form of crystalline aluminium oxide is known as corundum, which is the thermodynamically stable form.The oxygen ions form a nearly hexagonal close-packed structure with the aluminium ions filling two-thirds of the octahedral interstices. Each Al3+ center is octahedral. In terms of its crystallography, corundum adopts a trigonal Bravais lattice with a space group of R3c.
Aluminium Oxide Preparation Products And Raw materials
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| 3B Pharmachem (Wuhan) International Co.,Ltd. | 18930552037 | 3bsc@sina.com | China | 15813 | 69 |
| Alfa Aesar | 400-6106006 | saleschina@alfa-asia.com | China | 30103 | 84 |
| Alfa Chemistry | +1-5166625404; | Info@alfa-chemistry.com | United States | 20000 | 58 |
| Hefei TNJ Chemical Industry Co.,Ltd. | +86-0551-65418671 +86-189 4982 3763 | sales@tnjchem.com | China | 34526 | 58 |
| career henan chemical co | +86-0371-86658258 | factory@coreychem.com | China | 29780 | 58 |
| Energy Chemical | 400-0056266 | marketing1@energy-chemical.com | China | 44927 | 58 |
| Hubei yongkuo Technology Co., Ltd | 027-59223108 15972152991 | 1248580099@qq.com | China | 9910 | 58 |
| Hubei Wande Chemical Co., Ltd | 15377098680 15377098680 | 1148280011@qq.com | China | 9436 | 58 |
| Wuhan Penglei Biological Technology Co., Ltd. | 18672616696 | 229092275@qq.com | China | 706 | 58 |
| Dongguan Walixi Chemical Co., Ltd | 0796-8612228 18664658771 | 1489577060@qq.com | China | 4844 | 58 |
Related articles
- The properties and uses of Corundum
- Corundum is a rock-forming mineral that is found in igneous, metamorphic, and sedimentary rocks.
- Nov 19,2019
View Latest Price from Aluminium Oxide manufacturers
| Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
|---|---|---|---|---|---|---|---|---|
 |
2025-05-23 | Aluminium Oxide
1344-28-1
|
$38.00-79.00 | 1kg | 99% | 20ton | Hebei Zhuanglai Chemical Trading Co Ltd | |
 |
2024-06-18 | Aluminium oxide
1344-28-1
|
25kg | 98% | 10000 | Hebei Youfeidi Trading Co., LTD | ||
 |
2018-04-25 | Alumina; Aluminium Oxide
1344-28-1
|
$22.60 | 25KG | 99.999%; 99.99%; 99.9% | 1000tons | Chemson Industrial (Shanghai) Co., Ltd. |
-
- Aluminium Oxide
1344-28-1
- $38.00-79.00
- 99%
- Hebei Zhuanglai Chemical Trading Co Ltd
-
- Aluminium oxide
1344-28-1
- $0.00
- 98%
- Hebei Youfeidi Trading Co., LTD
-
- Alumina; Aluminium Oxide
1344-28-1
- $22.60
- 99.999%; 99.99%; 99.9%
- Chemson Industrial (Shanghai) Co., Ltd.
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