Trademark

Chemical Composition;

1000℃
1h
No More Than

REO
no less than

La₂O₃/REO
no less than

impurity content, No More Than

rare earth impurity; /REO

non-rare earth impurity

Fe₂O₃

SiO₂

CaO

CuO

NiO

PbO

La₂O₃-045

99

99.995

0.005

0.0005

0.0050

0.0050

0.0005

0.0010

0.0050

1

La₂O₃-04

99

99.99

0.01

0.0005

0.0050

0.0050

0.0005

0.0010

0.0050

1

La₂O₃-2

98

99.9

0.1

0.001

0.010

0.010

—

—

—

2

La₂O₃-3

97

99.5

0.5

0.005

0.050

0.050

—

—

—

3

La₂O₃-4

95

99

1

0.010

0.050

0.10

—

—

—

5