Difference between revisions of "Erbium"

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===Relevant Sciencemadness threads===
 
===Relevant Sciencemadness threads===
 
*[http://www.sciencemadness.org/talk/viewthread.php?tid=21663 Very low solubility of erbium oxide in mineral acids]
 
*[http://www.sciencemadness.org/talk/viewthread.php?tid=21663 Very low solubility of erbium oxide in mineral acids]
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[[Category:Elements]]
 
[[Category:Elements]]
 
[[Category:Rare earth metals]]
 
[[Category:Rare earth metals]]
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[[Category:Materials that react with water]]
 
[[Category:Materials that react with water]]
 
[[Category:F-block]]
 
[[Category:F-block]]
[[Category:Erbium Compounds]]
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[[Category:Erbium compounds]]

Revision as of 13:19, 17 August 2015

Erbium is a chemical element in the lanthanide series, with symbol Er and atomic number 68.

Properties

Chemical

Erbium metal tarnishes slowly in air and burns readily to form erbium(III) oxide:

4 Er + 3 O2 → 2 Er2O3

Erbium will slowly react with cold water, but the reaction occurs much faster in hot water.

Physical

Erbium is a silvery-white malleable metal. It is stable in air, and does not oxidize as quickly as some other rare-earth metals. Erbium is ferromagnetic below 19 K, antiferromagnetic between 19 and 80 K and paramagnetic above 80 K.

Availability

Erbium can be purchased online. Metallium sells erbium coins.

Preparation

Erbium can be prepared by reducing its oxide or salts with calcium at 1450 °C under argon atmosphere.

Er2O3 + 3 Ca → 2 Er + 3 CaO

Projects

Handling

Safety

Storage

Disposal

References

Relevant Sciencemadness threads