Haines & Maassen Metallhandelsgesellschaft mbH



Melting Point

795° Celsius

Kristallstruktur von Cer(III)-oxid

Specific weight

6.77 g/cm3

Abundance of Element




Atomic number


Boiling point

3360° Celsius

Purities available

CeO2 slightly yellowish oxide

TREO > 99 %

CeO2/ TREO > 99.9 %

Forms available



0.5 kg bottles - 50 kg drums
1000 kg big bags

Buying Cerium

If you would like to buy cerium oxide or find out our current cerium oxide price please click here for our contact information. We would also appreciate your call at +49 228 946510.


Cerium: Use

Cerium oxide is used as a catalytic converter for the oxidation of CO and Nox emissions in the exhaust gases of motor vehicles and as a component of Diesel fuels. Cerium is considered the best agent for the precision polishing of optical components. It is also used as component and as decolorant in glass production and as a hardening component of iron- and aluminium alloys. Other applications are magnets, tungsten electrodes and arc lamps in the film industry.


Cerium: History and occurrence

Cerium was discovered in 1803 independently of one another in Sweden by Jöns Jakob Berzelius and Wilhelm Hisinger as well as in Germany by Martin Heinrich Klaproth. It was named after the dwarf planet Ceres which had been discovered two years before. Cerium was first discovered in form of the oxide as the isolation of the pure form was not possible with the means available at the time. After Humphry Davy discovered electrochemistry five years later it became possible to extract cerium and the other rare earth metals in their pure form. However, this was only achieved in 1830. At that time it was recognised that only 45% of the pure element were contained in the mineral originally discovered as cerium.

Cerium is the most abundant rare earth element with 0.0046% of the Earth’s crust by weight. It is extracted from various minerals like allanite, monazite and bastnäsite. Presently monazite and bastnäsite are the most important sources for the extraction of pure cerium.

For 2009 the USGS estimated a global output of rare earths of about 124000 tons.