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<p>[QUOTE=&quot;desertgem, post: 2045757, member: 15199&quot;]For coins that you consider valuable, I suggest one-time use of acetone for coins. If one wished to save it for other uses as a solvent, that would be fine. The EPA and most states have acetone as a non-HAP material, meaning it can safely be allowed to evaporate into air, it&#039;s main problem is flammability and oxygen displacing. So working in a relatively open , non flame containing area&nbsp; is a necessity. If you are just storing a gallon or two, you still have a danger, but legal. Larger amounts or an enclosed area should have it stored in a flammables locker. If by any reach of imagination, you are storing above 10,000 lbs of it, you must, in most states ,register with the local fire and emergency services, and in most states, is not allowed in higher density residential zones. Insurance may be invalidated in some states if not followed.[/QUOTE]</p><p><br /></p>

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