Quality items

Standard

Results

Appearance:

Light Pink powder No visible impurities

Light Pink powder

Er2O3/REO

≥99.90%

＞99.9%

REO

≥99.00%

99.70%

Loss on ignition

≤0.5%

0.10%

Rare earth impurities / REO

La2O3

＜50ppm

CeO2

＜50ppm

Pr6O11

＜50ppm

Nd2O3

＜50ppm

Sm2O3

＜50ppm

Eu2O3

＜50ppm

Gd2O3

＜50ppm

Tb4O7

＜50ppm

Dy2O3

＜50ppm

Ho2O3

＜50ppm

Tm2O3

＜50ppm

Yb2O3

＜100ppm

Lu2O3

＜300ppm

Y2O3

＜50ppm

None Rare earth impurities

Fe2O3

＜10ppm

SiO2

29ppm

CaO

20ppm

Cl-

＜100ppm