| Zinc [Zn] (CAS-ID: 7440-66-6)
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| An: 30 N: 35 Am: 65.409 (4) g/mol
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| Group No: 12
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| Block: d-block
Period: 4
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| State: solid at 298 K
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| Colour: bluish pale grey Classification: Metallic
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| Boiling Point: 1180k (907'C)
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| Melting Point: 692.68k (419.53'C)
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| Density: 7.14g/cm3 |
| Availability: Zinc is available in many forms including dust, foil, granules, powder, pieces, nanosize activated powder, shot, and a mossy
form.
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 Discovery Information
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| Who: Andreas Marggraf |
| When: 1764 |
| Where: Germany |
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| Name Origin
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| German: zin (German for tin). |
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| Sources
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| Found in the minerals zinc blende (sphalerite) (ZnS), calamine, franklinite, smithsonite (ZnCO3), willemite, and zincite (ZnO). The largest producers are Australia, Canada, Peru and the USA.
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| Uses
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| Used to coat other metals (galvanizing) to protect them from rusting. Used in alloys such as brass, bronze, nickel. Also in solder, cosmetics and pigments.
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| Zinc Oxide is used as a white pigment in watercolours and paints. It can also be found as an over-the-counter ointment that
is appplied to the exposed skin of the face or nose to prevent dehydration. It can also prevent sunburn.
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| Zinc Chloride (ZnCl2) is used as a deodorant and can also be used as wood preservative.
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| Zinc Sulfide (ZnS) is used in luminescent pigments such as those on the hands of clocks and other items that glow in the dark. |
| Calamine lotion, used to treat skin rashes, is a mix of Zn-(hydroxy-)carbonates and silicates. |
| Throat lozenges, used as remedies for the common cold, use Zinc Gluconate Glycine (C12H22O14Zn) and Zinc acetate.
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| Notes
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| Zinc is an essential element, necessary for sustaining all life. It is estimated that 3000 of the hundreds of thousands of
proteins in the human body contain zinc.
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