Lanthanum carbonate, La2(CO3)3, is the salt formed by lanthanum(III) cations and carbonate anions. It is an ore of lanthanum metal, along with monazite.
L 1049 (OTTO) Lanthanum carbonate, 99.99% Cas 54451-24-0 - used extensively for cracking reactions in FCC catalysts, especially to manufacture high-octane gasoline from heavy crude oil.