Qhib alumina muaj ntau txoj hauv kev, yog li qhov tshwj xeeb nto loj. Nws tuaj yeem siv los ua adsorbent, desiccant, defluorinating agent thiab catalyst carrier. Nws kuj yog ib hom kab dej desiccant thiab tus ncej-molecular adsorbent, raws li cov adsorbed molecular polarization, qhov txuas txuas yog muaj zog rau dej, oxide, acetic acid, alkali thiab lwm yam. hauv dej, tsis nthuav dav, tsis muaj hmoov, tsis tawg.