CHEMICAL COMPOSITION | Erbium Metal | |||
Er/TREM (% min.) | 99.99 | 99.99 | 99.9 | 99 |
TREM (% min.) | 99.9 | 99.5 | 99 | 99 |
Rare Earth Impurities | ppm max. | ppm max. | % max. | % max. |
Gd/TREM Tb/TREM Dy/TREM Ho/TREM Tm/TREM Yb/TREM Lu/TREM Y/TREM | 10 10 30 50 50 10 10 30 | 10 10 30 50 50 10 10 30 | 0.005 0.005 0.05 0.05 0.05 0.005 0.01 0.1 | 0.01 0.05 0.1 0.3 0.3 0.3 0.1 0.6 |
Non-Rare Earth Impurities | ppm max. | ppm max. | % max. | % max. |
Fe Si Ca Al Mg W Ta O C Cl | 200 50 50 50 50 50 50 300 50 50 | 500 100 100 100 50 100 100 500 100 100 | 0.15 0.01 0.05 0.02 0.01 0.1 0.01 0.15 0.01 0.01 | 0.15 0.01 0.05 0.03 0.1 0.1 0.05 0.2 0.03 0.02 |