Cerium is a chemical element with symbol Ce and atomic number 58. It is a soft, ductile, silvery-white metal that tarnishes when exposed to air. Cerium is the most abundant of the rare earth elements and is used in various applications including catalysts, glass polishing, and in alloys.
Description: Cerium is a chemical element in the lanthanide series, discovered in 1803 by Jöns Jakob Berzelius and Wilhelm Hisinger, and independently by Martin Heinrich Klaproth. It is named after the dwarf planet Ceres. Cerium is the most abundant rare earth element, making up about 0.0046% of the Earth's crust by weight. It is found in minerals such as monazite and bastnäsite. Cerium has several industrial uses: it is a key component in catalytic converters for automobiles, used in glass polishing (cerium oxide), in self-cleaning ovens, and as an alloying agent in steels and aluminum. Cerium also plays a role in the production of carbon-arc lighting and in the manufacture of flints for lighters. Its compounds are used in the petroleum industry for cracking catalysts and in the production of phosphors for TV screens and fluorescent lamps. Cerium is not traded as a financial asset on major exchanges; however, it is a commodity in the rare earth market, with prices influenced by supply and demand dynamics, geopolitical factors, and technological advancements.
Established / Launched: 1803
Founder / Issuer: Jöns Jakob Berzelius, Wilhelm Hisinger, Martin Heinrich Klaproth