Application:
Mainly used as yttrium iron garnet additives and nuclear reactor control materials used in the manufacture of special glass and absorb infrared light-emitting glass, also used glass coloring agent.
Items | Grade | |||||
Er2O3/REO% min. | 99 | 99.5 | 99.9 | 99.95 | 99.99 | |
REO % min. | 99 | 99 | 99 | 99 | 99 | |
Rare earthimpurities % max. | Dy2O3 | Total 1.0 | Total 0.5 | Total 0.1 | Total 0.05 | 0.0005 |
HO2O3 | 0.0015 | |||||
Tm2O3 | 0.002 | |||||
Yb2O3 | 0.002 | |||||
Lu2O3 | 0.001 | |||||
Y2O3 | 0.002 | |||||
Other Rare earth impurities %Max. | 0.001 | |||||
% max. | Fe2O3 | 0.005 | 0.002 | 0.001 | 0.001 | 0.0005 |
SiO2 | 0.02 | 0.01 | 0.005 | 0.005 | 0.003 | |
CaO | 0.02 | 0.02 | 0.01 | 0.005 | 0.001 | |
CuO | - | - | - | 0.001 | 0.001 | |
PbO | - | - | - | 0.001 | 0.001 | |
NiO | - | - | - | 0.001 | 0.001 |