Loaʻa nā alumina nui i nā ala alumina, no laila nui ka ʻili kikoʻī. Hiki ke hoʻohana ʻia ma ke ʻano he adsorbent, desiccant, defluorinating agents a me catalyst carrier. ʻO ia nō kahi ʻano desiccant wai me ka adsorbent pou-mole, e like me ka polarization o ka molekoki adsorbed, ikaika ka ikaika hoʻopili no ka wai, ʻokekika, ʻakika acetic, alkali a me nā mea ʻē aʻe he ikaika nui, haʻahaʻa abrasion, ʻaʻohe palupalu. i ka wai, ʻaʻohe mea hoʻonui, ʻaʻohe pauka, ʻaʻohe māwae.