Log in or Sign up
Coin Talk
Home
Forums
>
Coin Forums
>
Coin Chat
>
What causes copper coins to become black and Porous
>
Reply to Thread
Message:
<p>[QUOTE="GDJMSP, post: 7440441, member: 112"]What causes copper coins to become black and Porous</p><p><br /></p><p>Well you can give the scientific explanation, which has already been done. Or you can answer the question quite simply, with one word in fact - corrosion.</p><p><br /></p><p>Of course then somebody is gonna ask - well then, what causes corrosion ? And there's a simple 1 word answer to that too - air. That's all it takes, just plain old ordinary air.[/QUOTE]</p><p><br /></p>
[QUOTE="GDJMSP, post: 7440441, member: 112"]What causes copper coins to become black and Porous Well you can give the scientific explanation, which has already been done. Or you can answer the question quite simply, with one word in fact - corrosion. Of course then somebody is gonna ask - well then, what causes corrosion ? And there's a simple 1 word answer to that too - air. That's all it takes, just plain old ordinary air.[/QUOTE]
Your name or email address:
Do you already have an account?
No, create an account now.
Yes, my password is:
Forgot your password?
Stay logged in
Coin Talk
Home
Forums
>
Coin Forums
>
Coin Chat
>
What causes copper coins to become black and Porous
>
Home
Home
Quick Links
Search Forums
Recent Activity
Recent Posts
Forums
Forums
Quick Links
Search Forums
Recent Posts
Competitions
Competitions
Quick Links
Competition Index
Rules, Terms & Conditions
Gallery
Gallery
Quick Links
Search Media
New Media
Showcase
Showcase
Quick Links
Search Items
Most Active Members
New Items
Directory
Directory
Quick Links
Directory Home
New Listings
Members
Members
Quick Links
Notable Members
Current Visitors
Recent Activity
New Profile Posts
Sponsors
Menu
Search
Search titles only
Posted by Member:
Separate names with a comma.
Newer Than:
Search this thread only
Search this forum only
Display results as threads
Useful Searches
Recent Posts
More...