CeO₂/TREO

99.95

99.99

99.999

TREO

99.00

99.00

99.50

Fe₂O₃

0.002

0.001

0.0001

SiO₂

0.003

0.002

0.00017

CaO

0.003

0.001

0.0001

SO₄^2-

0.002

0.003

0.00014

Cl^-

0.003

0.001

0.00014

Na₂O

0.002

0.0014

0.00011

PbO

0.003

0.001

0.0001474