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Essay On Metals
Beginning of paper
On Gold
What's so special about this gold stuff, anyway? I mean, it's
expensive because it's rare but why do we use it in jewellery?
Gold has a couple of fairly unique properties that have made it
attractive to jewellers throughout history. Prime among these is its
resistance to corrosion. The only chemical that can dissolve or even
tarnish pure g ....
Middle of paper ....istance to wear but we must remember that it also
changes the other special property of gold - its resistance to corrosion.
Some chemicals in more-or-less popular use in body-piercing circles
(Betadine, to be specific) will tarnish "gold" of as high as 18 K, though
of course it is really the alloying metals that are affected. Also - and
this is rea.... |
Word count: 1159 |
Page count: 5 |
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