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2. Aluminium oxide - Wikipedia

   en.wikipedia.org/wiki/Aluminium_oxide

   The solid Al(OH) 3 Gibbsite is then calcined (heated to over 1100 °C) to give aluminium oxide: [7] 2 Al(OH) 3 → Al 2 O 3 + 3 H 2 O. The product aluminium oxide tends to be multi-phase, i.e., consisting of several phases of aluminium oxide rather than solely corundum. [17] The production process can therefore be optimized to produce a ...

3. Aluminium oxide (data page) - Wikipedia

   en.wikipedia.org/wiki/Aluminium_oxide_(data_page)

   This page provides supplementary chemical data on aluminium oxide. Material Safety Data Sheet ... Structure and properties. Structure and properties ... 3.333: 1.701 ...

4. Bayer process - Wikipedia

   en.wikipedia.org/wiki/Bayer_process

   The Bayer process is the principal industrial means of refining bauxite to produce alumina (aluminium oxide) and was developed by Carl Josef Bayer.Bauxite, the most important ore of aluminium, contains only 30–60% aluminium oxide (Al 2 O 3), the rest being a mixture of silica, various iron oxides, and titanium dioxide. [1]

5. Aluminium oxides - Wikipedia

   en.wikipedia.org/wiki/Aluminium_oxides

   Aluminium(I) oxide (Al 2 O) Aluminium(II) oxide (AlO) (aluminium monoxide) Aluminium(III) oxide (aluminium oxide), (Al 2 O 3), the most common form of aluminium oxide, occurring on the surface of aluminium and also in crystalline form as corundum, sapphire, and ruby

6. Cryolite - Wikipedia

   en.wikipedia.org/wiki/Cryolite

   Molten cryolite is used as a solvent for aluminium oxide (Al 2 O 3) in the Hall–Héroult process, used in the refining of aluminium. It decreases the melting point of aluminium oxide from 2000–2500 °C to 900–1000 °C, and increases its conductivity [ 18 ] thus making the extraction of aluminium more economical.

7. Aluminium(I) oxide - Wikipedia

   en.wikipedia.org/wiki/Aluminium(I)_oxide

   Aluminium(I) oxide is formed by heating Al and Al 2 O 3 in a vacuum while in the presence of SiO 2 and C, and only by condensing the products. [2] Information is not commonly available on this compound; it is unstable, has complex high-temperature spectra, and is difficult to detect and identify. In reduction, Al 2 O is a major component of ...

8. Activated alumina - Wikipedia

   en.wikipedia.org/wiki/Activated_alumina

   It has a very high surface-area-to-weight ratio, due to the many "tunnel like" pores that it has. Activated alumina in its phase composition can be represented only by metastable forms (gamma-Al 2 O 3 etc.). Corundum (alpha-Al 2 O 3), the only stable form of aluminum oxide, does not have such a chemically active surface and is not used as a ...

9. White fused alumina - Wikipedia

   en.wikipedia.org/wiki/White_fused_alumina

   Because of white fused alumina's hardness (9.0 on the Mohs scale), It is second only to diamond and silicon carbide.It is commonly used as a raw material in abrasive tools, blasting, lapping, polishing, and grinding. white fused alumina is also used in refractories and ceramic shapes laminates due to chemical stability, high melting point, etc.