what is the uses of zinc
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Most zinc is used to galvanise other metals, such as iron, to prevent rusting. Galvanised steel is used for car bodies, street lamp posts, safety barriers and suspension bridges. Large quantities of zinc are used to produce die-castings, which are important in the automobile, electrical and hardware industries.
Facts About Zinc
Zinc has a self-healing mechanism in it. ...
Zinc melts at 787 F (420 C), and boils at 1,665 F (907 C).
Zinc comprises an estimated 0.004% of the Earths crust.
Zinc ranks 24th in order of material abundance in the Earth.
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The major uses of zinc metal are in galvanizing iron and steel against corrosion and in making brasses and alloys for die-casting. Zinc itself forms an impervious coating of its oxide on exposure to the atmosphere, and hence the metal is more resistant to ordinary atmospheres than iron and corrodes at a much lower rate. In addition, because zinc tends to oxidize in preference to iron, some protection is afforded the steel surface even if some of it is exposed through cracks. The zinc coating is formed either by hot-dip galvanizing or electrogalvanizing.
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