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50033
What types of metal corrode ?
September 17, 2008
umm, hi
does anyone know what kid of metles corrode ?
marlie j
student - shepp, vic, AUS
September 18, 2008
Hi, Marlie. If you were to find a nugget of gold, then somehow it
didn't corrode in millions of years. But you won't find nuggets of
iron or aluminum or copper or zinc because they do. The metals that
don't corrode are basically the precious metals, and they are metals
you can find in nature. The metals that you need to smelt from ores
will return to an ore-like state eventually.
You didn't tell us what grade you are in, so it's hard to know
what you will and won't understand. But when metals corrode they
release a small amount of heat. The corroded state is a lower energy
state. So corroded metal does not return to uncorroded metal
spontaneously.
Regards,
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Ted Mooney, P.E.
finishing.com
Brick, New Jersey
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