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why does salt affect the speed of rust???

Posted: Wed Nov 28, 2007 10:23 am
by scotta740
I need to know why does salt affect the speed of rust for my science fair project please. :) :) :)

Posted: Wed Nov 28, 2007 12:51 pm
by Craig_Bridge
What grade are you in? Have you had any chemistry yet?

Try doing some research on "cathodic protection". In other words look at what it takes to slow down or prevent the process and see if you can figure it out from that perspective.

Posted: Wed Nov 28, 2007 3:49 pm
by staryl13
Hi Scott!
Check out the following link- it explains why salt water might induce rusting.
http://www.metalwebnews.com/howto/rust/rust.html
Hope it helped, good luck!