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see aluminaalumina
or aluminum oxide,
Al2O3, chemical compound with m.p. about 2,000°C; and sp. gr. about 4.0. It is insoluble in water and organic liquids and very slightly soluble in strong acids and alkalies. Alumina occurs in two crystalline forms.
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References in periodicals archive ?
They used the literature data [6,7,9] for water imbibing into oil-saturated sandstone, alundum, and aluminum silicate cores.
Remelting of the consumable electrode was performed under the flux represented by a mixture of fluoric calcium, alundum, magnesite, silica, and manganese oxide.
Products are made from Alundum fused alumina, the purest 99% aluminum oxide in a basic state.