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 Replies: 21 / Views: 2,606 |
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Moderator
 United States
23522 Posts |
Therefore, what's on it wasn't organic.
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Bedrock of the Community
United States
20753 Posts |
An interesting new type of coin maybe. If you can figure out what you did and how you did it, start a new buisness selling Red Indian Head coins.
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Pillar of the Community
 United States
8521 Posts |
...no, that would be buying red indian heads lol. I bought a couple of them to see if I could get the paint off. Apparently it's not paint.
Oregon coin geek.....*** GO BEAVS ! ! ! ***
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Pillar of the Community
United States
624 Posts |
Why don't you let is soak for a longer period. It may take more that ~24 hours to burn through that stuff.
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Pillar of the Community
United States
8521 Posts |
I just threw another one in the soup, a 1916-D even redder than the other. This one might be paint. If it's not paint then I'm not sure what's causing them to turn red like that.
Oregon coin geek.....*** GO BEAVS ! ! ! ***
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Pillar of the Community
United States
1374 Posts |
Hey Raymo,
The next option might be xylene. I haven't used it, but be careful with it.
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Pillar of the Community
1751 Posts |
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Pillar of the Community
United States
624 Posts |
Can you immerse copper (lincoln cents) in Xylene without creating a science project?
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Pillar of the Community
United States
8521 Posts |
I've never tried Xylene, kinda scares me a bit.
Oregon coin geek.....*** GO BEAVS ! ! ! ***
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Pillar of the Community
United States
1374 Posts |
Bama, I don't think it will explode. But soaking the coins in acetone or xylene for a long period are probably not the best ideas.
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Pillar of the Community
United States
624 Posts |
Drsandman2... I'm not familiar with the properties of Xylene. Acetone Will pit copper and copper-clad coins and soaking them even for a short time may not be the best thing to do. However, Silver coins (90%) are immune from any corrosion from Acetone due to a lack of oxygen and hydrogen (e.g., H2O -- water). You could literally store silver coins in Acetone without any impact to the integrity of the surface of the coin. If that's not correct, I'd like to know (I've never had a coin in Acetone for more than 2 weeks).
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Pillar of the Community
United States
8521 Posts |
Acetone blew the top off my baby food jar. That surprised me.
Oregon coin geek.....*** GO BEAVS ! ! ! ***
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Moderator
United States
23522 Posts |
Quote:
If that's not correct, I'd like to know (I've never had a coin in Acetone for more than 2 weeks). You could do the same with copper and copper-clad, if you wish. Don't forget what silver coins are alloyed with. It's not just the copper, it's the presence of water vapor and light to supply the ingredients for the photochemical reaction. Doesn't matter what the copper is capable of if you deny it the other ingredients. And it bears mentioning that acetone is quite miscible, and as a result needs to be stored in airtight fashion or it'll attract its' own water. |
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Pillar of the Community
United Kingdom
4208 Posts |
52Raymo - Wow! Was it in direct sunlight by any chance?
Acetone shouldnt pit copper...perhaps its cleaning out the dirt which reveals pitting.
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Pillar of the Community
United States
8521 Posts |
No, I was very careful to keep it shaded. The top was still sitting on the rim but was completely lifted up and loose.
Oregon coin geek.....*** GO BEAVS ! ! ! ***
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Replies: 21 / Views: 2,606 |
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First Page
Posted 05/01/2013 12:34 pm
