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<p>[QUOTE=&quot;Seattlite86, post: 3577795, member: 59737&quot;]Skepticism is not always a bad thing. I struggled with such worries as well, but it’s because the last (and not) chemistry course I took was over 10 years ago. After listening to a few folks who knew what they were talking about, I caught on. </p><p><br /></p><p>A few things: never mix copper coins with non copper coins. You’ll get copper wash, which will permanently stain your other coins. </p><p><br /></p><p>Most recommend this order, 30 minutes soak each:</p><p>Water, acetone, xylol (if you have it, I don’t), acetone, water. Ensure after each soak, that you agitate the coin in the solution prior to putting it into the next solution, to prevent particles from settling on the coin.</p><p>Ensure the coins are 100% dry (wait a few hours if you have to) between soaking solutions. Water and acetone react together. </p><p>Keep your acetone out of sunlight and away from heat. </p><p>Seal your acetone soak container as best as possible. </p><p>I have done many overnight water and acetone soaks with zero damage to my coins. Unless your coin is a strange composition metal, like many coins out of Africa, you’ll have no issues. </p><p><br /></p><p>Does this help?[/QUOTE]</p><p><br /></p>

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