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<p>[QUOTE=&quot;Just Carl, post: 285341, member: 4552&quot;]It is true that Acetone has been discussed many times on many forums. The reason is it basically safe for all metals. There was a web site about the use of Acetone on Copper coins if exposed to the Sun or very bright lighting. It stated the coins would be completely ruined. That was the usualy garbage type web site of no possible usefullness. I&#039;ve taken a jar of Acetone, placed several denominations of coins in it, left it for days both in the Sun, Bright lights, dark rooms and at the end, nothing. Some of the coins appeared a little cleaner but basically nothing happened to the coins. After I rinsed in distilled water and blow dryed with a standard hair dryer on no heat setting. Then after a few weeks, I noticed still nothing happened to those coins. I am not sure anymore of the exact coins but think they were Copper from prior 82&#039;s, Copper post 82&#039;s, normal Nickel, Buffalo Nickel Liverty Head Dime, recent Quarter. </p><p>The main thing to note is&nbsp; if you purchase Acetone from a&nbsp; paint department anywhere, it will be in a metal can. These cans are coated on the insides for the protection of the solutions inside the cans as well as making them leak proof. Acetone is a extreamely great solution to disolve many things and eventually may disolve some of the inner coating of the can. This can be tested easily. Take a very clean, clear dish or cup of jar. Place a small amount of the Acetone in it and allow to evaporate. If there is any residue at all, discard this Acetone as contaminated. Usually Acetone used in labratories comes in glass containers so as to keep it less contaminated. Only use the purest Acetone when attempting to dip a coin in that solution. </p><p>It may help to rinse with distilled water also and blow dry to get rid of any possible left over moisture but only with the dryer on cool settings. Heat is not real great on Copper. It increases Oxydation. </p><p>Again, Acetone can be purchased at almost any place that sells paint. Walmart, Kmart, HomeDepot, Menards, Ace hardware, etc.[/QUOTE]</p><p><br /></p>

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