Y2O3 99.995% 1.Y2O3 99.995%, REO 99.0% 2.REO Impurity Max 0.005% 3.Other Impurity Fe2O3 0.0005%, SiO2 0.003%, CaO 0.001%, Cl- 0.02% Y2O3 99.999% 1.Y2O3 99.999%, REO 99.0% 2.REO Impurity Max 0.001% 3.Other Impurity Fe2O3 0.0003%, SiO2 0.002%, CaO 0.0007%, Cl- 0.01% Packing 25kgs in cardboard drum