introduction: Formula:CeO2 specification:TREO%≥99% CeO2/TREO≥99%~99.99% packing:packed in double layered, sealed plastic sack. 50Kg for each one sack, Packaging container:500Kg Code TREO ≥% La2O3/TREO ≥% Non-Rare Earth Impurities≤% Fe2O3 SiO2 CaO CeO2-1 99 99 0.05 0.15 0.1 CeO2-2 99 99.9 0.003 0.02 0.02 CeO2-3 99 99.99 0.001 0.02 0.02