Cobalt has been used for centuries in ceramics, pottery glazes, dyes and glassware. It was first isolated as an element in 1735. Cobalt is commonly used today in magnets, MRI machines, batteries and paints due to its strong magnetic properties. Cobalt is generally found in ores combined with arsenic, oxygen or sulfur and extracted as a byproduct during the refining of other ores.

1. Robert Coveny Patrick O’Connor Patrick Darcy

3. Over the centuries Cobalt has been used in an array of different areas. Ancient civilisations used cobalt in ceramics and glazes for pottery as well as in dyes. Georgius Agricola, in the 16 th Century successfully supplied Cobalt as raffre Cobalt was used throughout the 1800’s as a blue pigment in glassware Cobalt was first isolated by Swedish chemist Georg Brant in 1735.

7. As cobalt has strong magnetic properties, it is commonly used in high powered magnets and also in medical equipment such as MRI imaging machines

8. Cobalt is also used in broad range of other devices

9. Uses of Cobalt up until 1998

10. Cobalt is generally found in ores combined with Arsenic, Oxygen or Sulfur. Pure Cobalt does not exist in nature Cobalt is normally extracted as a by-product of refining other ores The ore is first roasted to remove slag material, leaving a mixture of metals and oxides The compound is reduced through electrolysis and heat aluminium is added to sulphuric acid to dissolve the iron, cobalt, nickel Lime is used to precipitate the iron, while sodium hypochlorite is used to precipitate cobalt as the hydroxide The cobalt hydroxide is then heated to give the oxide, which is then reduced the metal by heating with charcoal

11. Cobaltite~ CoA s S Erythrite~ (Co 3 (AsO 4 ) 2 ) Glaucodot~ (Co,Fe)AsS Skutterudite~ CoAs 3

12. Alnico ~ containing iron, nickel, aluminium and cobalt. Is used to make magnets that keep their magnetism even at very high temperatures. Are found in loudspeakers, microphones, pick-ups Paper containing Cobalt-Chloride is used in laboratories to detect water Lithium- Cobalt Oxide is used in batteries Cobalt Oxides are used in paints and glazes

13. The invention of machines The discovery of new elements The development of more effective techniques development of technology

17. Brian Knapp, B. P. (2002). Actinium to Fluorine. Unknown: Atlantic Europe Publishing Company Ltd. Hill, H. C. (2003). The Transition Metals 2. London - Oxford: Heinemann Library. Unknown. (2005, August Wednesday). Cobalt - Wikipedia . Retrieved March Thursday, 2008, from Wikipedia: http://en.wikipedia.org/wiki/Cobalt Pope, R. (2003, March 24). Cobalt . Retrieved March unknown, 2008, from Web Elements: http://web1.caryacademy.org/chemistry/ElementWebSites/cobalt/ unknown. (2006, October unknown). unknown . Retrieved 03 unknown, 2008, from Cobalt—Its Recovery,Recycling and Application: http://www.tms.org/pubs/journals/jom/0610/wang-0610.html