Alumina ntụ ntụ, makwaara dị ka aluminum oxide or alumina na-arụ ọrụ, bụ ngwakọta kemịkalụ nke a na-ejikarị emepụta aluminom.
| Nlereanya | Ntụ ntụ | Achicha (ibe) | Ọkụkụ (Bọọlụ) |
| Ụdị | Ọcha rụrụ ntụ ntụ | Achịcha ọcha | Ọcha granular |
| Nkezi dayameta irighiri ihe mbụ (um) | 0.2-3 | - | - |
| Mpaghara elu akọwapụtara (m/g) | 3月12日 | - | - |
| Njupụta nnukwu (g/cm) | 0.4-0.6 | - | 0.8-1.5 |
| Nnukwu njupụta (g/cm) | - | 3.2-3.8 | - |
| Ọdịnaya Al2O3 (%) | 99,999 | 99,999 | 99,999 |
| Si(ppm) | 2 | 2 | 2 |
| Na (ppm) | 1 | 1 | 1 |
| Fe(ppm) | 1 | 1 | 1 |
| Ca(ppm) | 1 | 1 | 1 |
| mg(ppm) | 1 | 1 | 1 |
| S(ppm) | 1 | 1 | 1 |
| Ti(ppm) | 0.3 | 0.3 | 0.3 |
| Ku (ppm) | 0.8 | 0.8 | 0.8 |
| Cr (ppm) | 0.5 | 0.5 | 0.5 |
| Dị ka dị iche iche chọrọ nwere ike inye ntụ ntụ, granule, ngọngọ, achịcha ma ọ bụ kọlụm ụdị | |||
1.Luminescent ihe: obere ụwa trichromatic phosphor eji dị ka isi akụrụngwa ogologo afterglow phosphor, PDP phosphor, LED phosphor;
2.Transparent ceramics: eji dị ka fluorescent tubes maka elu nsogbu sodium oriọna, electricly programmable na-agụ naanị ebe nchekwa window;
3.Single Crystal: maka imepụta ruby, sapphire, yttrium aluminum garnet;
4.High ike elu alumina seramiiki: dị ka mkpụrụ a na-eji na-emepụta sekit agbakwunyere, ịcha ngwá ọrụ na nnukwu ịdị ọcha crucible;
5.Abrasive: rụpụta ihe nkedo nke iko, metal, semiconductor na plastik;
6.Diaphragm: Ngwa maka imepụta ihe mkpuchi batrị lithium batrị;
7.Other: dị ka mkpuchi na-arụ ọrụ, adsorbents, catalysts and catalyst supports, vacuum cover, pụrụ iche iko ihe, ihe mejupụtara, resin filler, bio-ceramics wdg.
Ọ bụrụ na ị nwere ajụjụ ọ bụla. Biko nweere onwe gị ịkpọtụrụ anyị.