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Beryllium

History

 It is the fourth element of the periodic table Mendeleev. The second title glucinium survived only in France. For a long time, it could not identify as element because of its chemical properties similar to aluminum compounds. First it recognized Louis Nicolas Voklen in 1798. Only after almost 100 years P. Lebo was able to obtain pure beryllium electrolysis of beryllium-sodium fluoride.

Nowadays

 Beryllium and its alloys are widely used in space, missile and aviation technology. Beryllium is both lightness and strength, and resistance to heat, so it is often used by metallurgists. Beryllium oxide has become an important material for the manufacture of shells fuel cell (fuel rods) nuclear reactors. Berillidies - intermetallic compound of beryllium with tantalite, niobium, zirconium and other refractory metals. They have exceptional hardness and resistance against oxidation. The best technical performance berillidies is the fact that they can be explored more than 10 hours at a temperature of 1650 ° C.

Date ASIA EUROPE USA
26/12/2009 878.73 878.73 878.73
19/12/2009 878.73 878.73 878.73
12/12/2009 878.78 878.78 878.78
05/12/2009 878.87 878.87 878.87
28/11/2009 891.17 891.17 891.17
21/11/2009 878.76 878.76 878.76
14/11/2009 890.91 890.91 890.91
07/11/2009 904.97 904.97 904.97
31/10/2009 883 883 883
24/10/2009 900.58 900.58 900.58
17/10/2009 878.89 878.89 878.89
10/10/2009 879.04 879.04 879.04
02/10/2009 878.95 878.95 878.95
25/09/2009 878.84 878.84 878.84
18/09/2009 879.93 879.93 879.93
12/09/2009 878.61 878.61 878.61
05/09/2009 883 883 883
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