【Product Features】 （1）CeO2 has good oxygen storage through controlling the surface activity of CeO2, thus restrain the oxidation of side chain. （2）CeO2 and silicone rubber has good compatibility which is helpful for them mixing fully, through controlling the size and surface characteristics of CeO2. 【Composition】 TREO>99% La2O3<0.01% CeO2>99.9% Pr6O11<0.02% Nd2O3<0.01% Fe2O3<0.01% CaO<0.1% L.O.I<0.3% F<0.1% H2O<0.5% Particle Size: D50: 0.5-0.7 mm D100<6 mm 【Packing】 Net Weight: 25 kg/package.