AliFab has reciently completed the sale of two Aluminium Frame Marquees to the Arusha International Conferance Centre in Tanzania. The marquees were required as extra space is required for the expanding central African conferance facility.
For the full story follow this link to the press release
http://www.prlog.org/11885445
Sunday, 27 May 2012
Tuesday, 22 May 2012
INTERESTING FACTS
ABOUT ALUMINIUM
Not much is
generally known about aluminium so here are some interesting facts about the
metal. The metal is spelt ‘Aluminum’ in the USA.
·
Aluminium
is by far the most common metal on the Earth’s surface. It makes up 8.1% of the
Earth’s crust. However Aluminium never occurs naturally in its pure form. In
the ground it is combined with other chemicals as minerals in ore rocks. The
major source of aluminum is layers of soft ore called bauxite, which is mostly
aluminum hydroxide.
·
Aluminium
powders were used 5000 years ago for dyeing. Pure aluminum was first made in
1825 by the Danish scientist Hans Christian Oersted, Aluminium production was
the first industrial process to use hydroelectric power when Paul Heroult set
up a plant on the river Rhine in 1887. Each year 21 million tonnes of aluminum
are made, mostly from bauxite dug up in Brazil and New Guinea. Aluminium oxide
can crystallize into one of the hardest minerals, corundum, which is used to
sharpen knives.
·
Aluminium
is silver in color when freshly made, but it quickly tarnishes to white in the
air. It is very slow to corrode. Aluminium is one of the lightest of all the
metals. It weighs just one-third as much as steel. Aluminium melts at 650°C and
boils at 2450°C.
·
Although
aluminum is common in the ground, it is worth recycling because extracting it
from bauxite uses a lot of energy. It only takes 5% of the original amount of
energy to recycle aluminium.
Name
of Element : Aluminium
Symbol of Element : Al
Atomic Number of Aluminium : 13
Atomic Mass: 26.981539 amu
Melting Point: 660.37 °C - 933.52 °K
Boiling Point: 2467.0 °C - 2740.15 °K
Number of Protons/Electrons in Aluminium : 13
Number of Neutrons in Aluminium : 14
Crystal Structure: Cubic
Density @ 293 K: 2.702 g/cm3
Colour of Aluminium : silvery-white
Symbol of Element : Al
Atomic Number of Aluminium : 13
Atomic Mass: 26.981539 amu
Melting Point: 660.37 °C - 933.52 °K
Boiling Point: 2467.0 °C - 2740.15 °K
Number of Protons/Electrons in Aluminium : 13
Number of Neutrons in Aluminium : 14
Crystal Structure: Cubic
Density @ 293 K: 2.702 g/cm3
Colour of Aluminium : silvery-white
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