Used as a catalyst in petroleum refining, especially in fluid catalytic cracking (FCC) processes to improve the efficiency of converting heavy hydrocarbons into lighter fractions like gasoline.

Employed in the production of specialty glasses and optical materials due to its ability to enhance refractive index and improve chemical durability.

Serves as a precursor in the synthesis of pure lanthanum metal for high-performance magnets and other lanthanum-containing compounds, including lanthanum aluminate substrates for high-temperature superconductors.

Applied in biochemical research, such as inhibiting the activity of certain enzymes.

Used as an additive in ceramic materials to enhance strength and thermal stability.

Utilized in research and development of luminescent materials and phosphors for lighting and display technologies.