Transcript Aluminum - Rocky View Schools

Aluminum
By: Keith Hopkinson
Grade 9
Science
Aluminum Discovery
As early as 1787, scientists suspected this metal
existed in alum.
In 1825, a Danish chemist, Hans Christian Oersted
produced the first tiny amounts of aluminum by
heating anhydrous aluminum chloride with potassium
amalgam and distilling off the mercury.
Between 1827 & 1845, Frederick Wöhler improved
this process.
In 1854, Henri Ètienne Sainte-Claire Deville
developed a process for commercial production of
aluminum.
Chemical & Physical
Properties
It is light weight but extremely strong.
It does conduct electricity, but not as well as copper.
Its silvery white in its pure state.
Its resists corrosion.
It’s a good reflector of light and heat.
Its non-toxic.
It responds easily to every form of metalworking.
Sparks cannot be struck from it.
It is not magnetic.
Interesting Facts
13
Al
Aluminum
26.981538
Melting Point = 933.437
K (660.323°C or
1220.581°F)
Boiling Point = 2792 K
(2519°C or 4566°F)
Density = 2.70 g/cm^3
Solid at room
temperature.
Interesting Facts cont’d
Aluminum is the most common element in the
earth’s crust. Makes up 8%.
It is used by man in more ways then any
other metal.
It weighs about a 1/3 of iron, copper, or brass.
Its never found in a pure state, only with other
elements.
Its most commonly found in rocks known as
Feldspars.
Current Uses
Aluminum is mixed with oils for paint.
Its used for aluminum foil.
Its used in toothpaste and shaving cream.
Its used in the roofs of cars, and oil tankers.
Its used in furniture and bathroom stuff.
Its used for furnaces.
Its used in electrical transmission lines.
Its used in the surface glass to make mirrors.