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<p>[QUOTE=&quot;GDJMSP, post: 817460, member: 112&quot;]Say what you will Thad, but acetone IS known to turn some copper coins all sorts of weird colors. </p><p><br /></p><p>Yeah, I know, you and Dick and anybody else with a chemistry background can spout all the facts and figures and elements and compounds you want - but it happens ! I can&#039;t tell you why it happens, I don&#039;t even CARE why it happens. It is enough for me to KNOW that it happens. And to pretend otherwise is foolish.</p><p><br /></p><p>And it also happens that your 100% acetone can be contaminated. Yeah, right in the can you buy it in from the store - the one with the label on it that says 100% acetone.</p><p><br /></p><p>I&#039;m not arguing the science with you, you know a hundred times more than I do on that count. But I know what I have seen with my own eyes. I know that many others have reported the same things I have seen with my own eyes. And that is the acetone sometimes leaves residue on coins - and yes, I mean new clean, 100% label right on the can acetone used on the final rinse. It happens.</p><p><br /></p><p>My experience has been that those who do not use the distilled water rinse that I recommend have <u>sometimes</u> had problems. Those who do follow my advice - have <u>never</u> had problems. </p><p><br /></p><p>And those who read this - well they can believe whatever they want to believe.[/QUOTE]</p><p><br /></p>

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