Metal carbonates like limestone Metal hydroxides like caustic soda Metal sulphates like gypsum Metal oxides like bauxite
Bauxite Haematite Malachite Ferrotite
Iron ore, coke and slag Iron ore, gypsum and slag Limestone, coke and slag Iron ore, coke and limestone
Tweezers Carbon Electrolysis Large hammers
The surface oxide layer protects it It is below hydrogen in the reactivity series It is expensive It is rare
To make it go further To reduce the melting point To make it shiny To make it light
To make it shiny To make it pink For use as a food additive For use as electrical wiring
