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Related to alumina: Activated alumina


Any of several forms of aluminum oxide, Al2O3, occurring naturally as corundum, in a hydrated form in bauxite, and with various impurities as ruby, sapphire, and emery, used in aluminum production and in abrasives, refractories, ceramics, and electrical insulation. Also called aluminum oxide.

[New Latin alūmina, from Latin alūmen, alūmin-, alum.]


(Elements & Compounds) another name for aluminium oxide
[C18: from New Latin, plural of Latin alūmen alum]


(əˈlu mə nə)

the natural or synthetic oxide of aluminum, Al2O3, occurring in nature in a pure crystal form as corundum.
[1780–90; < Latin alūmin-, s. of alūmen alum1 + -a4]
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.alumina - any of various forms of aluminum oxide occurring naturally as corundum
furnace lining, refractory - lining consisting of material with a high melting point; used to line the inside walls of a furnace
corundom, corundum - very hard mineral used as an abrasive
alundum - a substance made of fused alumina
References in classic literature ?
They are a shining reproof to all low-grade German "ruby" enamels, so-called "boort" facings, and the dangerous and unsatisfactory alumina compounds which please dividend-hunting owners and turn skippers crazy.
Summary: State-owned Vinacomin to supply EGA with up to 300,000 tonnes of alumina per year
Emirates Global Aluminium, the largest industrial company in the UAE outside oil and gas, has sent 13 female UAE national engineers to Ma'aden's alumina refinery in Saudi Arabia as part of preparation work for the start-up of EGA's Al Taweelah alumina refinery in Abu Dhabi.
Emirates Global Aluminium's $3bn (AED11bn) Al Taweelah alumina refinery, is currently nearing completion, with construction 60% over for the Calciners section of the project.
1%, reached commercial production at its bauxite mine and alumina refinery in Saudi Arabia in early October.
The clearance is conditional on the divestment of Alteo ARC's white fused alumina business in La Bathie, France.
Indonesia Chemical Alumina (ICA), a joint corporation owned by Showa Denko K.
6 August 2012 a[euro]" US cleaning products and bio-remediation fluids developer Bio-Clean International Inc (OTCBB:BCLE) announced that its joint venture partner Kyrgyz Alumina Inc had entered into a letter of intent (LoI) to buy Kyrgyzstan-located alumina concessions owner Glinozium LLC.
Perth, Australia, July 5, 2012 - (ABN Newswire) - Perth based bauxite explorer and developer Bauxite Resources Ltd (ASX:BAU) is pleased to confirm the appointment of bauxite mining, alumina refining and aluminium smelting industry leader Mr Bill Moss who will take up the role of General Manager with Bauxite Alumina Joint Venture ("BAJV") on 2 October 2012.
The addition of alumina nanoparticles to BECy has not been extensively studied.
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