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<p>[QUOTE=&quot;SuperDave, post: 2804183, member: 1892&quot;]Acetone is only capable of reacting with copper in the presence of bright light and water, and even that&#039;s not proven science - to date, all the rumors you&#039;re hearing to that effect are based on <i>one single scientific article</i> from a group affiliated with people who have a product which competes with acetone.</p><p><br /></p><p>Never stopped me from soaking copper in acetone just like any other coin. I&#039;m unsure that&#039;s a PVC plasticizer problem on your coin, though; it doesn&#039;t usually manifest in two single small spots like that. If I were doing it myself, I&#039;d start with a 24-hour soak and then pick at the green spots with a sharp thorn (roses and hawthorns are both terrific) with a vertical action to see if stuff breaks loose. Check around the Forum with the Search function for one of the numerous times we&#039;ve discussed acetone use in detail.[/QUOTE]</p><p><br /></p>

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