Kunna alumina yana da ƙananan hanyoyi, don haka takamaiman farfajiyar yana da girma. Ana iya amfani da shi azaman adsorbent, desiccant, defluorinating agent and catalyst carrier. Hakanan nau'in nau'in desiccant ne mai raɗaɗi da ƙura-ƙura mai ƙyalli, bisa ga tallan ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar cuta, ƙarfin abin da aka makala yana da ƙarfi ga ruwa, oxide, acetic acid, alkali da dai sauransu. a cikin ruwa, babu fadadawa, babu foda, babu tsage.