Alumina hmoovyog ib yam khoom uas muaj purity siab, zoo-grained ua los ntawmtxhuas oxide (Al2O3)uas siv dav hauv ntau yam kev siv hauv kev lag luam. Nws yog ib qho hmoov dawb crystalline uas feem ntau tsim los ntawm kev ua kom cov bauxite ore.
| Cov Khoom Siv Lub Cev: | |
| Xim | Dawb |
| Qhov tsos | Hmoov |
| Mohs hardness | 9.0-9.5 |
| Qhov kub yaj (ºC) | 2050 xyoo |
| Kub taw tes (ºC) | 2977 |
| Qhov ceev tiag tiag | 3.97 g/cm3 |
| Cov Lus Qhia Tshwj Xeeb | Al2O3 | Na2O | D50 (um) | Cov khoom siv lead ua thawj | Qhov Ceev Ntau |
| 0.7 um | ≥99.6 | ≤0.02 | 0.7-1.0 | 0.3 | 2-6 |
| 1.5 um | ≥99.6 | ≤0.02 | 1.0-1.8 | 0.3 | 4-7 |
| 2.0 um | ≥99.6 | ≤0.02 | 2.0-3.0 | 0.5 | <20 |
Hmoov txhuas oxide (Al2O3) yog ib yam khoom siv ntau yam uas pom ntau daim ntawv thov thoob plaws ntau yam lag luam.
Yog tias koj muaj lus nug dab tsi. Thov koj xav tiv tauj peb.