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Aluminium
Beginning of essay
The history of use
is now one of the most widely used metals, but one of the hardest to
refine due to it's reactivity with other elements. Even as late as the turn of
the century, was considered very valuable and in turn expensive, even
more expensive than gold. In some cultures, when a function ....
Middle of essay
....sits are found in many countries, but the countries with
significant deposits include: Guinea, Jamaica, Surinam, Australia and Russia.
How is Aluminium refined?
One method is the ‘electrolytic process'. This is performed when a low voltage
current is passes through a bath containing alumina in the molten form. The
alumina is broken down into Aluminium metal which collects at the bottom of the
bath at one electrical pole, the cathode, and the oxygen which reacts at the
other pole, the anode, to.... |
| Number of words: 493 |
Approximate pages: 2 |
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