Cobalt

Basic Information

• Atomic Number: 27
• Atomic Mass: 58.933
• Family Name: Transition Metal
• Discovered in 1730's by Georg Brandt
• Cobalt is a solid and a metal

What is Cobalt Used in?

• Jet Engines
• Gas Turbines
• Magnets (with aluminum and nickel)
• The Earth's Crust
• Cobalt is also a component of the vitamin B12

Physical and Chemical Properties

• Melting Point: 1495° C
• Boiling Point: 2870° C
• Density: 8.9 g.cm-3 at 20°C

Fun Facts About Cobalt

• Cobalt is not actually blue, but grey when purified
• 27 Electrons
• 27 Protons
• 32 Neutrons
• Cobalt is poisonous if consumed often.

Where does the word cobalt come from?
The name cobalt comes from the German word kobalt, meaning evil spirit, because cobalt was poisonous

Why is cobalt not blue?
While the purified metal is a grey steel color, the salts that include cobalt atoms are many shades of blue.

Georg Brandt Biography

• He was born on July 21, 1694 in Riddarhyttan
• He died on April 29 in 1768, Stockholm (age 73)
• Georg Brandt was a Swedish chemist and mineralogist

Cites

• http://www.elementalmatter.info/element-cobalt.htm
• http://www.chemicool.com/elements/cobalt.html
• http://education.jlab.org/itselemental/ele027.html
• http://www.livescience.com/29275-cobalt.html
• http://www.ducksters.com/science/chemistry/cobalt.php

Cites cont.

• http://www.lenntech.com/periodic/elements/co.htm
• http://www.britannica.com/EBchecked/topic/77733/Georg-Brandt
• adopt-a-element.wikispaces.com
• periodictable.com