An alloy is defined as a solid solution of two or more elements present in a combined form in a metallic matrix. It can either be a partial solid solution or a complete solid solution. Alloys generally are created as they have varied properties compared to their constituent elements. An important alloy of lanthanoids is Misch metal. It contains lanthanoids (94−95%), iron (5%), and traces of Al, Ca, Si, C, S.

Uses

(a) It is used in tracer bullets and shells.

(b) Misch metal is used in cigarettes and gas lighters.

(c) It is used in flame-throwing tanks.