10.2.3: Industrial extraction of aluminium
E-assessement - B1: Periodic Table:
Activity - Class demonstration
Discussion of the importance of aluminium in modern society. It makes up 8.1% of the earth's crust and is the third most abundant element after oxygen and silicon (by mass).
Hans Christian Oersted from Denmark successfully extracted impure aluminium in 1825.
Hans Christian's work was continued by Friedrich Woehler, a German chemist, who set about working from 30 grams of aluminium powder in October 22, 1827.
It took another 18 years of continuous experimentation for Friedrich to create small balls of solidified molten aluminium (globules) in 1845.*
The modern industrial process
There are two main stages in the industrial extraction:
Make a flow chart to show the journey from rock to an aluminium engine component.
Include all relevant chemical equations.
Research the environmental impact of aluminium manufacture.
One World Essay (700 - 1200 words) on aluminium.