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<p>[QUOTE=&quot;rlm&#039;s cents, post: 2652099, member: 7957&quot;]The only reason 24 hour soak in acetone might be bad would be acetone forms an acid with prolonged exposure to air.&nbsp; However, you use the acetone to dissolve organics.&nbsp; That pretty much occurs in the first minute of the soak.</p><p><br /></p><p>I guess xylene fumes are worse than acetone, but xylene is orders of magnitude less volatile than acetone.&nbsp; Yes, acetone smells like nail polish remover - because that is what nail polish remover is.&nbsp; Personally, I would not bother taking either outside so long as I am using small quantities.&nbsp; Yes, both can be stored in glass jars, but you will likely have problems with the lid (rubber seal).&nbsp; Treat them like gasoline.</p><p><br /></p><p>I know of no reason xylene would hurt a coin in most any time frame.&nbsp; Again, it is used only to dissolve organics which pretty much occurs in the first minute.&nbsp; I doubt more than an hour gains you anything.[/QUOTE]</p><p><br /></p>

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