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<p>[QUOTE=&quot;Just Carl, post: 215871, member: 4552&quot;]Just one more probably by now boring post about the usage of Acetone on coins. </p><p>On April 10, 2007 @ 5:00PM I emersed 6 coins in a beaker full of Acetone. This is Acetone recently purchased from Walmart Paint department in a metal can. I covered the beaker so as to stop evaporation and left it on a window ledge inside my garage so it would be in some light. </p><p>April 11, 2007 @ 5:00 PM I moved the beaker with the coins to a location outside next to my garage and in direct lighting. Still no sun but kind of clearing out. </p><p>April 12, 2007 @ 3:00 PM I removed all the coins from the beaker and placed on a redwood patio table to dry. No rinsing of any kind. </p><p>April 12, 2007 @ 3:30PM I brought all coins inside the house, placed on a paper towel, turned on a bright lamp, got out magnifying glasses. NOW the results. </p><p>1972D Lincoln Cent from previous experiment with the green crud on it and still there. Does not appear to have been cleaned at all.</p><p>1988D Jefferson Nickel was scratched, dented, dirty and now appears to be much cleaner. Dents and scratches more noticable. </p><p>1905 Liberty Dime that was to worn to see any Mint mark and a large area on the obverse with dark black discoloration remains the same on the obverse but a dark area now appears on the reverse. </p><p>1977 Roosevelt Dime was just very dirty as if found in the ground. Now the obverse is new looking but the reverse has a dark area similar to the 05 Liberty Dime.</p><p>1980 Washington Quarter was just well worn and slightly old in appearance. Now shines like a coin from the Mint. Acetone worked well for this one. </p><p>Feeling a little irritated about the Dimes I placed them both in Vinegar for a few minutes. No change. Then I added some Lemon Juice to that and rubbed both coins. Still no change on the 05 but the dark area on the reverse of the Roosevelt Dime now turned Copper colored. </p><p>Still my summation is coins should not be cleaned but obviously a dip in a decent or better grade of Acetone will not hurt them. Oviously even if forgotten for a few days. </p><p>Of course in different climatic areas the air, amount of light, gravity, etc., may bring other results.[/QUOTE]</p><p><br /></p>

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