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ALUMINIUM WITH NUMBERS
1. Designation
Al
2. Atomic number
13
3. Atomic mass
27
4. Density at
20 °C 2,7 g/cm³
5. A process for
producing Aluminium was described by Friedrich
Wöhler (Germany) in 1827
6. Start year
of Aluminium industry 1886
7. Atomic diameter
1,43 A°
8. Ion diameter
0,86 A°
9. Melting heat
93 kcal/g
10. Melting temperature
660 °C
11. Density in
melting temperature 2,37 g/cm³
12. Boiling temperature
2300 °C
13. Heat conductivity
? 0,82 cal/cm.s.°C @ 190 °C
14. Electricity
conductivity 37,74 ?/ohm.mm²
15. Electricity
self resistance 25,5x10-3 ohm.mm°/m @ 658,5
°C
16. Surface tension
454 dyn/cm @ 1000 °C
17. Average tension
40-540 N/mm²
18. Spesific heat
(solid) 0,2727 cal/g.°C @ 657 °C
19. Spesific heat
(liquid) 0,2502 cal/g.°C @ 657 °C
20. Atomic heat
7,00 cal/g.atom
21. 4 units Bauxit?2
units Alumina?1 unit Aluminium recovers
22. Aluminium
is in the Earth’s crust and constitutes 7,45%
by mass.
23. 160 tons of
Aluminium particules (dust) burn out during
the launch of a space shuttle
24. Consumption
of primary aluminium in about 22 million tons/year
on the world 86% of it is consumed in Europe,
America, Africa, Japan. The rest 14% in Fareast,
Asia, Oceania, East Europe and China
25. Per capita
consumption in Europe 20 kg (1995)
26. Per capita
consumption in USA and Japan 30 kg (1995)
27. Highest consumption
in Europe (Germany) 27 kg/capita
28. Per capita
consumption in Greece 9 kg (1995)
29. Per capita
consumption in Turkey 3 kg (1995)
30. Required energy
for producing 1 kg. Aluminium is 15 kWh/kgAl
(world average)
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| ALKAR ALÜMÝNYUM SAN. ve TÝC. A.Þ. | Ýzmir Yolu 8. km
BALIKESÝR Tel : (0266) 283 00 83 | Faks : (0266) 283 00
82 |
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