CAS: 12680-02-3
La2O3: 99.995% Min.
CeO2: 0.0003% Max.
Pr6O11: 0.0003% Max.
Nd2O3: 0.0003% Max.
Sm2O3: 0.0002% Max.
Y2O3: 0.0002% Max.
Application: Mainly used in making optical glasses and fiber. It is also used in ceramic industries and catalysis etc.