Cerium hydroxide (Ce(OH)4), ʻike ʻia hoʻi ʻo cerium hydrate, he pauka melemele māmā a i ʻole brownish melemele me nā waiwai optical maikaʻi, nā waiwai uila a me nā waiwai catalytic. Hoʻohana nui ʻia ia i nā mea ʻike kinoea, nā wahie, nā optics nonlinear, catalysts a me nā māla ʻē aʻe.
Loaʻa i ka hui ʻo WONAIXI ka patent noʻonoʻo o ke kaʻina hana cerium hydroxide maʻemaʻe kiʻekiʻe, a hiki ke hāʻawi i nā mea kūʻai aku me nā huahana cerium hydroxide kiʻekiʻe (egSO42-<100ppm, Cl -<50ppm etc.) a me ke kumu kūʻai hoʻokūkū.