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[Rare Earth] Erbium Oxide(Er2O3)

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Green Resource Co., Ltd.

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Erbium Oxide

Items	Specifications				Typical analyses	Analytical instruments
Formula	Er2O3	Er2O3	Er2O3	Er2O3
REO %	≥ 99	≥99	≥99	≥ 99
Purity and relative RE impurities
Er2O3/REO %	≥ 99.99	≥99.95	≥ 99.90	≥ 99.50
Tb4O7/REO %	≤ 0.001	Total RE impurities ≤ 0.05	Total RE impurities ≤ 0.1	Total RE impurities ≤ 0.5	≤ 0.001	①
Dy2O3/REO %	≤ 0.001				≤ 0.001	①
Ho2O3/REO %	≤ 0.001				≤ 0.001	①
Tm2O3/REO %	≤ 0.002				≤ 0.002	①
Yb2O3/REO %	≤ 0.003				≤ 0.003	①
Y2O3/REO %	≤ 0.002				≤ 0.002	①
Non-RE impurities
Fe2O3 %	≤ 0.0005	≤0.001	≤ 0.001	≤ 0.005	≤ 0.0005	②
SiO2 %	≤0.003	≤0.005	≤ 0.005	≤ 0.01	≤ 0.003
CaO %	≤0.0015	≤ 0.0015	≤ 0.02	≤ 0.05	≤ 0.0015	②
CuO %	≤ 0.001	≤ 0.002	≤ 0.005	≤ 0.005	≤ 0.001	②
Cl- %	≤ 0.02	≤ 0.02	≤ 0.03	≤ 0.03	≤ 0.02
Loss on ignition % (1000℃, 1hour)	≤1	≤1	≤ 1	≤ 1	≤ 1

Notes

Green Resource Co., Ltd.

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Company introduction: Green Resource Co., Ltd. is the wolrd top class supplier in Korea regarding rare earth products, rare metals, nano powders, ceramic powders, and other materials used in high-tech industry. We can assure that you will be satisfied with our price, quality, and rapid delivery etc.,

Our company has a professioal laboratoty in which we control the quality of our products, and we are constantly deverloping new items and many of these new items have been patented. With your continuous support, we look forwards to grow into the world leader in this industry.

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