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<p>[QUOTE=&quot;Morgan, post: 64003, member: 3630&quot;]<b>Clean away their your coins!</b></p><p><br /></p><p>AJM-</p><p>I agree with your view on cleaning a worn circulated coin.<img src="styles/default/xenforo/clear.png" class="mceSmilieSprite mceSmilie8" alt=":D" unselectable="on" unselectable="on" />&nbsp; For those specific instances the possible damage due to cleaning is no worse than the years of wear the coin has recieved. Heck I have always been kinda grossed out by my pocket change. I keep thinking about the movie &quot;Mallrats&quot; and the use of A*s pennies.<img src="styles/default/xenforo/clear.png" class="mceSmilieSprite mceSmilie9" alt=":eek:" unselectable="on" unselectable="on" /> </p><p>&nbsp;</p><p><br /></p><p>&nbsp;</p><p>As far as a dish of distilled water goes you have to be extreemly carefull. The problem with distilled water is it still isn&#039;t pure H2O. Ions are still present. In fact depending on what is coating your dish, soap or residue from previous use, more ions can be created. Also the &quot;dirt&quot; you are remopving can form ions. This is all due to the polarity of the water molecule. It&#039;s just too darn reactive.<img src="styles/default/xenforo/clear.png" class="mceSmilieSprite mceSmilie5" alt=":confused:" unselectable="on" unselectable="on" /> </p><p>&nbsp;</p><p>The problem is if the wrong ions are present the original oxide layer of the coins surface can get disrupted. It may not be apparent but it can easily happen. Once disrupted the integrity is damaged and the coin will experience a different corrosion pattern. This is because the ion that disrupted the layer remains within the layer. Once there it can continue the corrosion.<img src="styles/default/xenforo/clear.png" class="mceSmilieSprite mceSmilie3" alt=":(" unselectable="on" unselectable="on" />&nbsp; </p><p>&nbsp;</p><p>Yes cleaning a physically dirty coin can make things easier to read but it can also promote and accelerate the corrosion of the surface of the coin.<img src="styles/default/xenforo/clear.png" class="mceSmilieSprite mceSmilie3" alt=":(" unselectable="on" unselectable="on" /> <img src="styles/default/xenforo/clear.png" class="mceSmilieSprite mceSmilie3" alt=":(" unselectable="on" unselectable="on" /> </p><p>&nbsp;</p><p>Don&#039;t get me wrong I still agree with you but I also think that a forum such as this is a dangerous place to discuss the topic.[/QUOTE]</p><p><br /></p>

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