Cov khoom
| Aluminium | |
| Cim | Al |
| Phase ntawm STP | khov kho |
| Melting point | 933.47 K (660.32 ° C, 1220.58 ° F) |
| Boiling point | 2743 K (2470 ° C, 4478 ° F) |
| Ceev (ze rt) | 2.70 g / cm3 |
| thaum ua kua (ntawm mp) | 2.375 g / cm3 |
| Kub ntawm fusion | 10.71 kJ/mol |
| Kub ntawm vaporization | 284 kJ / mol |
| Molar tshav kub muaj peev xwm | 24.20 J/(mol·K) |
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Aluminium oxide alpha-theem 99.999% (hlau hauv paus)
Aluminium Oxide (Al2O3)yog ib qho dawb los yog ze li ntawm cov xim tsis muaj xim crystalline, thiab cov tshuaj lom neeg ntawm txhuas thiab oxygen. Nws yog tsim los ntawm bauxite thiab feem ntau hu ua alumina thiab kuj tseem hu ua aloxide, aloxite, lossis alundum nyob ntawm cov ntawv tshwj xeeb lossis daim ntawv thov. Al2O3 yog qhov tseem ceeb hauv nws txoj kev siv los tsim cov hlau txhuas, raws li cov khoom abrasive vim nws cov hardness, thiab raws li cov khoom siv refractory vim nws qhov siab melting point.