|Molten lanthanum is used for plutonium extraction from liquid uranium. It is the contact point of rare element and atomic industries. |
La2O3 has more extensive applications. It is a white amorphous powder; insoluble in water improves the alkali resistance of glass. The Kodak's camera objectives contain from 20 to 40% La2O3. Lanthanum additives made possible to decrease camera objectives dimensions and to improve colour photos quality at the same luminosity. It was used in field-type optical devices.