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The Transition Metals - Uses.
1) Some of the transition metals have widespread usage,
particularly iron (for construction)
and copper
(electrical wiring and water
pipes).
For more detail, see the individual elements.
2) Transition metals often form important alloys.
For example, iron in steel, zinc and copper in
brass.
3) Transition metals often make good catalysts for particular reactions.
For example,
Iron in the Haber Process.
Manganese(IV) oxide in the
decomposition
of hydrogen
peroxide.
Vanadium(V) oxide in the
contact process
(making sulphuric acid).
Platinum in the manufacture of nitric acid.
Nickel in the hydrogenation of vegetable oils
(to make margarines and soft-spreads).
Liquid vegetable
oils are unsaturated and will react with hydrogen,
which raises the melting point above
room temperature.
This is an example of an addition reaction.
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