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Co
Cobalt

History

 Swedish chemist George Brandt in 1735 allocated it first from ore. Name connected that the miners extract ore with cadmium, like silver, but could not get out of the precious metal and were poisoned by gas. This is called a prank evil spirit ‚"kobolds‚", which subsequently established in the name of the metal. Glasses with a beautiful blue hue received from smalt on the basis of cobalt even in ancient Egypt. 

Nowadays

 In the early 20 century cobalt is not used for alloying steel, but then after adding more chrome, steel has been able to harden. Alloy on the basis of cobalt is able to extend the service life of such details in 4-8 times. Also indispensable cobalt magnets as well as a large coercive force, or else - resistance to demagnetization. Cobalt is part of the body to vitamin B12, the lack of which leads to akobaltoz. Element 27 is required for the treatment of malignant tumors.

Date ASIA EUROPE USA
26/12/2009 54920.67 54920.67 54920.67
19/12/2009 53456.36 53456.36 53456.36
12/12/2009 54191.73 54191.73 54191.73
05/12/2009 54196.73 54196.73 54196.73
28/11/2009 54955.48 54955.48 54955.48
21/11/2009 54190.14 54190.14 54190.14
14/11/2009 51227.34 51227.34 51227.34
07/11/2009 52035.66 52035.66 52035.66
31/10/2009 50772.66 50772.66 50772.66
24/10/2009 51783.06 51783.06 51783.06
17/10/2009 49071.16 49071.16 49071.16
10/10/2009 49079.72 49079.72 49079.72
02/10/2009 49074.69 49074.69 49074.69
25/09/2009 49068.5 49068.5 49068.5
18/09/2009 50595.84 50595.84 50595.84
12/09/2009 50520.06 50520.06 50520.06
05/09/2009 50772.66 50772.66 50772.66
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