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<p>[QUOTE=&quot;predcarn, post: 151994, member: 6000&quot;]In the last half century or so, collectors have gone from &quot;cleaning is OK&quot;,</p><p>to &quot;cleaning is forbidden&quot; to &quot; cleaning is bad, conserving is good&quot;. So </p><p>doing what you did to the coin is &quot;wrong&quot; by current standards, but it</p><p>is your coin!, it&#039;s not unique and need to be saved for the future, and it</p><p>has a value of .01 and I doubt anyone would buy it from you for .02.</p><p>&nbsp;&nbsp; So experiment if you wish. You did mix some alkaline and some acidic</p><p>substances together and probably the Dawn soap has urea compounds</p><p>in it which also can be found in some old coin dip solutions as I remember,</p><p>which may account for some of the smell, although I don&#039;t know what</p><p>the &quot;goof&quot; stuff is made from, but probably it and the rust remover and</p><p>the citric acid and coca-cola are acidic.</p><p>&nbsp;&nbsp; </p><p>&nbsp;&nbsp;&nbsp; Don&#039;t judge the success of your formula now, let it sit in the dish or </p><p>put one in a 2X2 holder and see what it looks like if a few months. Many</p><p>cleaning solutions look good right after use, but then the ugly spots</p><p>and stains from uneven rinsing and reactions may appear.&nbsp; Copper is </p><p>very reactive and usually is damaged the most. Tap water is no good,</p><p>and some distilled water is slightly acidic. De-ionized water is the best ~</p><p>IF you really want to use water. JMHO.</p><p><br /></p><p>&nbsp;&nbsp;&nbsp; If you want to see some more DIY cleaning formulas,</p><p><a href="http://clean.ancients.info/joe/Links.htm" target="_blank" class="externalLink ProxyLink" data-proxy-href="http://clean.ancients.info/joe/Links.htm" rel="nofollow">http://clean.ancients.info/joe/Links.htm</a>[/QUOTE]</p><p><br /></p>

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