Go to Home Page
Go to Education Section
You are here
Go to Directories Section
Go to Community Section
Go to Fun Section
Go to Science Store
Go to About PhysLink.com
Top Destinations Menu
 Ask the ExpertsAsk the
Experts

 Physics Job BoardPhysics
Job Board

 Physics and Astronomy Departments DirectoryUniversity
Departments

 FREE Einstein eCardsEinstein
eGreetings

 PhysLink.com Science eStoreScience
eStore


Local in California?
Visit one of our retail stores.
XUMP - Science Toys





Win an Apple iPod Touch 32GB! Or one of Einstein Stuff Packs worth over $50! Enter our Einstein Look-a-Like Photo Contest! Click here for more details.

Cobalt
 Cobalt 
Co
Atomic Number: 27
Atomic Weight: 58.9332
Element Type: Transition Metal
Crystal Structure: Hexagonal
Melting Point: 1495.0°C = 2723.0°F = 1768.15 K
Boiling Point: 2927.0°C = 5300.6°F = 3200.15 K
Critical Temp: °C = °F = K
Atomic Radius: 1.67 Å (Å = Angstrom = 10-10 m)
Covalent Radius: 1.16 Å
Electronegativity: 1.88

History

(Kobald, from the German, goblin or evil spirit, cobalos, Greek, mine) Brandtdiscovered cobalt in about 1735.


Sources

Cobalt occurs in the minerals cobaltite, smaltite, and erythrite, and is oftenassociated with nickel , silver , lead, copper , and iron ores, from which it is most frequently obtainedas a by-product. It is also present in meteorites.

Important ore deposits are found in Zaire, Morocco, and Canada. The U.S. GeologicalSurvey has announced that the bottom of the north central Pacific Ocean may havecobalt-rich deposits at relatively shallow depths in water close to the the HawaiianIslands and other U.S. Pacific territories.



go to the top  
All rights reserved. © Copyright '1995-'2008 PhysLink.com
Win an Apple iPod Touch 32GB! Or one of Einstein Stuff Packs worth over $50! Enter our Einstein Look-a-Like Photo Contest! Click here for more details.