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 â"koboldsâ", 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.
