Cerium oxide (CeO2), ntụ ntụ na-acha odo odo na-ekpo ọkụ n'ime ụlọ, bụ oxide kachasị kwụsiri ike nke cerium cerium na-adịghị ahụkebe. A na-eji ya eme ihe n'ọtụtụ ebe dị ka ihe mgbakwunye na ụlọ ọrụ iko, ihe na-egbuke egbuke, ihe mgbakwunye agba, ihe ndị na-egbuke egbuke ụwa, wdg, yana dịkwa ka akụrụngwa maka njikọ nke cerium metal.
Ụlọ ọrụ WUNAIXI emepụtala cerium oxide ihe karịrị afọ iri ma nwee ike inye ndị ahịa ngwaahịa cerium oxide dị elu na ọnụahịa asọmpi.