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<p>[QUOTE=&quot;GDJMSP, post: 1748563, member: 112&quot;]Chemicals like acetone and xylene are <u><b>not</b></u> coin dips ! They would more correctly be described as cleaning agents, just like distilled water is a cleaning agent. And as a general rule they are harmless to coins. The one caveat is that acetone can sometimes cause copper coins to turn weird colors over time.</p><p>&nbsp;</p><p>But it is correct that even when using distilled water, acetone, or xylene, you do need to know what you are doing. There is a right way to use them and a wrong way to use them.</p><p>&nbsp;</p><p><b>ALL</b> coin dips contain an acid, and it is the acid that removes stuff from coins.[/QUOTE]</p><p><br /></p>

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