RE-impurities(ppm)

Non-RE-impurities(ppm)

La2O3/TREO

<0.1

Ag

0.1

Na

0.4

CeO2/TREO

<0.2

As

0.05

Ni

0.1

Pr6O11/TREO

<0.2

Ba

<0.1

P

0.2

Nd2O3/TREO

<0.4

Bi

<0.1

Pb

<0.2

Sm2O3/TREO

<0.5

Ca

1

Pt

0.3

Eu2O3/TREO

<0.3

Cd

<0.2

Se

0.1

Gd2O3/TREO

<0.5

Cl

1

Si

2

Tb4O7/TREO

<0.2

Co

0.03

Sn

<0.2

Dy2O3/TREO

<0.4

Cr

0.1

Th

<0.1

Ho2O3/TREO

<0.2

Cu

0.2

Ti

0.1

Er2O3/TREO

<0.4

Fe

0.1

V

0.1

Tm2O3/TREO

<0.2

K

1

W

<0.3

Yb2O3/TREO

<0.4

Mg

0.2

Zn

0.2

Lu2O3/TREO

<0.2

Mn

0.05

Zr

1

Sc2O3/TREO

<0.1

Mo

0.02