Alumina yog oxide ruaj khov ntawm aluminium thiab nws cov tshuaj lom neeg cov tshuaj yog Al2O3. Nws kuj tseem hu ua bauxite hauv kev khawb, ceramics thiab cov ntaub ntawv science.
Cov Khoom Tseem Ceeb: Cov khoom siv dawb tsis muaj ntxhiab hauv dej, tsis muaj ntxhiab, tsis qab, tsis qab, tsis yooj yim kom nqus noo tab sis tsis qab (tsis-hygroscopic tom qab hlawv). Alumina yog ib txwm muaj amphoteric oxide, (corundum yog alpha-zoo li tus thiab yog los ntawm hexagonal feem ntau densely ntim, nws yog ib qho inert compound, me ntsis soluble hauv acid thiab alkali thiab corrosion resistant [1]), soluble hauv inorganic acid thiab alkaline kua, yuav luag insoluble Dej thiab tsis-polar organic solvent; ntu ceev ntawm tus txheeb ze (d204) 4.0; melting point 2050 ℃.
Cia: muab kaw thiab qhuav cia.
Siv: siv raws li kev tshuaj ntsuam xyuas lub cev, lub cev qhuav dej ntawm cov kuab tshuaj organic, adsorbents, cov tshuaj tiv thaiv organic catalysts, abrasives, polishing agents, raw cov ntaub ntawv rau smelting aluminium, thiab cov ntaub ntawv refractory.