Uses of Lanthanides and actinides:Use of lanthanides:
1. The pyrophoric alloy that has lanthanum, cerium, and Neodymium; aluminium; iron; calcium, carbon and silicon is utilized in toys, cigarette lighters, flame throwing tanks and tracer bullets.
2. Ceria (CeO2) and thoria (ThO2) are utilized in gas lamp materials.
3. Cerium salts are utilized in lead storage batteries, dyeing cotton, and as catalyst.
4. Lanthanides are utilized in metallothermic reactions due to their exceptional reducing property. Lanthanido - thermicprocedures can yield adequately pure Nb, Zr, Fe, Co, Ni, Mn, Y, W, U, B & Si.
5. Alloys of Lanthanides are termed as mish-metals. The main constituents of mish-metals are Ce(45 to 50%), La(25%), Nd(5%) and small amounts of other lanthanide metals and Fe and Ca impurities. Mish-metals are utilized for the production of brands of steel such as heat resistant, stainless and instrumental steels. Mg- alloys having 30% mish-metal and 1% Zr are helpful in making parts of jet engines.Uses of Actinides:
1. U-235 is fissionable; it is employed as fuel in nuclear power plants and also as a component in the nuclear weapons.
2. Plutonium - 238 is employed as a power source in long mission space probes.
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