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<p>[QUOTE=&quot;Just Carl, post: 831052, member: 4552&quot;]Not true at all. Almost anywhere you purchase Acetone it is usually pure. You can find it at Walmart, Kmart, Homedepot, Menards and on and on and on. Prior to the use of Acetone I suggest you do a SEARCH on this web site for Acetone, Cleaning coin, Cleaned coins and/or any combination of those. Covered many, many times. The old trick to find our it&#039;s purity is simple. On a really cleaned glass, clear dish, place some of the Acetone. Allow it to evaportate. If nothing left, it is pure. If a film is left, contaminated. Simple as that. Always best to use Acetone or any inflamable substance in a well ventilated area or better yet, outdoors. Do not light cigaretts or other items that may create something you&#039;ll be really sorry about. </p><p>The only problem with Acetone or any solvent is the containers they are stored in. A great sovent of any kind will eventually absorb some of the container itself. </p><p>A long time ago a Chemist made what he called the purest water in the World. He sealed it in a glass bottle. Today it is in a Museum and all cloudy. It absorbed some of the glass. </p><p>To take that gunk of those coins a few minutes in Acetone should work. </p><p>Naturally you&#039;ll read about other substances to try such as lighter fluid, Lemon Juice, Vinegar, Alcohol and many, many others. Also, remember that many people just blurt things out without the faintest idea of what they are saying but pretend to know. On the internet it is almost impossible to know who is who and who knows what. Be carefull with what you try. </p><p>As to telling a cleaned coin. Basically what has already been said is true. However, if a coin was cleaned and most or no one can tell it was cleaned, then no one really knows if it was cleaned. Sounds silly but many say they can tell and many times wrong. A dealer I know sent a coin in for Authenticating and it came back cleaned from a TPGS. He resent it to another TPGS and it came back slabbed and graded with no cleaning mentioned. </p><p>Many coins are very obviously cleaned and many cleaned coins can not be noted as cleaned. Sort of like if a tree falls in the forest and there is nothing to hear it, was a sound made?[/QUOTE]</p><p><br /></p>

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