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alumina 中文解釋 wordnet sense Collocation Usage Collins Definition
Noun
/əˈlo͞omənə/,
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A white solid, aluminum oxide, that occurs in bauxite and is found in crystalline form as the main constituent of corundum, sapphire, and other minerals,
  1. A white solid, aluminum oxide, that occurs in bauxite and is found in crystalline form as the main constituent of corundum, sapphire, and other minerals

  1. any of various forms of aluminum oxide occurring naturally as corundum
  2. Aluminium oxide is the family of inorganic compounds with the chemical formula 23. It is an amphoteric oxide and is commonly referred to as alumina, corundum as well as many other names, reflecting its widespread occurrence in nature and industry. ...
  3. Aluminum oxide used especially in mining, material sciences and ceramics
  4. Aluminum oxide, used as an abrasive, thickening agent, and absorbent in cosmetics.
  5. Aluminum Oxide, Al2O3. Exists in a variety of forms, many with high surface areas. Aluminas are very important catalyst supports and catalyst components
  6. A mineral (aluminium oxide [Al2O3]) usually found in the clay used for brick making; also used as a ceramic substrate material.
  7. Aluminium oxide. It is used to bed bone china in the biscuit firing. A fine white powder with a high fusing temperature.
  8. Aluminium oxide. It is extracted from bauxite in a chemical refining process and is subsequently the principal raw material in the electro-chemical process by which aluminium is produced.
  9. A normal-phase adsorbent used in adsorption chromatography. Aluminum oxide is a porous adsorbent that is available with a slightly basic surface; neutral and acidic modifications also can be made. Basic alumina can have advantages over silica, which is considered to have an acidic surface.
  10. A chemical compound (aluminum oxide); a ceramic used in powder or rod form in thermal spraying operations. May also be a blasting medium.
  11. along with silica, a basic building block of clay and glaze. Alumina doesn't melt at temperatures used for ceramics and glazes, reduces flow (fluxing) in glazes, and helps with strength. TOP
  12. up $863 million (20 per cent) to $5246 million;
  13. Aluminum Oxide- 6 Developmental/reproductive toxicity, Neurotoxicity, Persistence and bioaccumulation, Organ system toxicity (non-reproductive), Enhanced skin absorption, Occupational hazards
  14. Aluminium oxide (Al2O3), a common constituent of many refractory materials used in steel making.
  15. Aluminum sesquioxide, Al2O3. (It occurs in several forms, the principal being gamma- alumina and alpha-alumina (or corundum). So called beta-alumina contains a small amount of alkali metal oxide.)
  16. Click here to view Alumina Media.
  17. Aluminum oxide (Al2O3)
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