High Purity Erbium Oxide, pink powder, is insoluble in water, but soluble in acid lightly. It is used as control material of nuclear reactor, raw material of special glass, glass colorant and optic 

Er2O3≥99.5%

1.Er2O3≥99.5%, REO≥99.0%

2.REO Impurity Max 0.5%

3.Other Impurity Fe2O3 0.005%, SiO2 0.05%, CaO 0.05%, Cl- 0.05%

Er2O3≥99.9%

1.Er2O3≥99.9%, REO≥99.0%

2.REO Impurity Max 0.1%

3.Other Impurity Fe2O3 0.005%, SiO2 0.005%, CaO 0.01%, Cl- 0.03%

Er2O3≥99.99%

1.Er2O3≥99.99%, REO≥99.0%

2.REO Impurity Max 0.01%

3.Other Impurity Fe2O3 0.001%, SiO2 0.003%, CaO 0.001%, Cl- 0.03%

Packing  25kgs in cardboard drums