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Lanthanum oxide is La2O3, an inorganic compound containing the rare earth element lanthanum and oxygen.
LO 100 (OTTO) Lanthanum oxide nanopowder, APS 15-30 nm, 99.99% Cas 1312-81-8 - used as a catalyst to effect certain organic transformations. It is one of the active ingredients and finds application in thermoelectric and piezoelectric materials.