¡¡¡¡TREM 99.5% min Eu/TREM 99.9¡«99.999%
¡¡¡¡Fe <0.005% Si <0.003% Ca <0.005% Mg <0.003%
¡¡¡¡Al <0.003% Cu <0.003% Ni <0.003% Ta <0.002%
¡¡¡¡Ti <0.002% W <0.002% Mo <0.002% Pb <0.002%
¡¡¡¡C <0.005% N <0.01% F <0.01% O <0.05%
¡¡¡¡Cl <0.01% H <0.02%
¡¡¡¡<0.001% for any other non-rare earth elements
2¡¢
Shape and purpose:
¡¡ ingot shape or acicular crystal ,easily oxidized in the
air ,mainly used as additives for alloy materials .