Message:

<p>[QUOTE=&quot;Paul M., post: 2077487, member: 73165&quot;]<a href="http://www.walmart.com/ip/ONYX-Professionals-100-Pure-Acetone-Nail-Polish-Remover-16-fl-oz/11047134" target="_blank" class="externalLink ProxyLink" data-proxy-href="http://www.walmart.com/ip/ONYX-Professionals-100-Pure-Acetone-Nail-Polish-Remover-16-fl-oz/11047134" rel="nofollow">This stuff</a> should work.&nbsp; An easy way to test it for purity is to leave a small amount out in a loosely covered, clean, glass container and wait for it to evaporate.&nbsp; Then, check the bottom of the container for any greasy residue.&nbsp; There should be none.&nbsp; This brand contains only acetone and a very tiny amount (on the order of a few ppm) of a bittering agent (denatonium benzoate, the most bitter substance known to man) to guard against it being accidentally ingested.</p><p><br /></p><p>You&#039;re never going to get 100% reagent grade acetone outside of a chem lab, and acetone will absorb water from the air anyway, but the lack of any residue indicates a lack of organic contaminants that will end up on your coin after the solvents are removed.</p><p><br /></p><p>Once you have your acetone, soaking the coin in the liquid then rinsing with distilled water should do it.&nbsp; Make sure to specifically use distilled water (available from the grocery store most likely), as pretty much any other type of water contains minerals and possibly other stuff you don&#039;t want ending up on your coins.</p><p><br /></p><p>To dry the coin, you can either air dry or place it on a soft cloth towel (without rubbing), then pick it up and replace it on the towel in a dry location with the other side down.&nbsp; I think this is safe, but air drying after exposure to distilled water seems safer.</p><p><br /></p><p>Acetone will not affect the grade of the coin.&nbsp; You&#039;ve already got a damaged coin and properly removing PVC residue can only help the situation.[/QUOTE]</p><p><br /></p>

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