Lanthanum carbonate, La2(CO3)3, is the salt formed by lanthanum(III) cations and carbonate anions. It is an ore of lanthanum metal, (Bastnäsite) along with monazite.
Molar mass: 457.838 g/mol
Appearance: White powder, hygroscopic
Density: 2.6–2.7 g/cm3
Melting point: decomposes
Solubility in water:negligible
Solubility: soluble in acids
Lanthanum carbonate is used in medicine as a phosphate binder.
Lanthanum carbonate is also used for the tinting of glass, for water treatment, and as a catalyst for hydrocarbon cracking.