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<p>[QUOTE=&quot;Just Carl, post: 767132, member: 4552&quot;]Not to say this is all just bunk, but for sure a lot of erroneous information. For one the so called toning on Copper you state as CuO is in reality [CuCO3-Cu(OH)2]. And AgO? Where did you see that one? Next as you stated MOST Rubbing Alcohols contain 10 - 30 % water. And some much more and some much less and the water is never stated as to what it really is. Not all waters are what you think and if you think they are, look at your tap water in a microscope. An Ultrasound cleaner with Acetone? Please try that and let us know what hospital your in for flowers. Especially if the on/off switch is on the unit. </p><p>Hate to burst your bubble but everything GDJMSP said is what should be done. As to any or all of the miscellaneous solutions mentioned for cleaning or removing contaminates might and usually do have some really horrible effects. Especially if you are not doing the project with really great care. </p><p>I&#039;ve already found, much to my amazement, that even Acetone can and did effect coins. GDJMSP warned me and I used to argue that point but now after what happened to coins of mine in Acetone, I too always say leave well enough alone. </p><p>Once, not long ago, I acquired a 95 Double Die Lincoln for practically nothing due to a large finger print on the obverse. Acetone did nothing to remove that either. Neither did many other solutions such as Laquer thinners, Alcohols, Mineral spirits and many others. Eventually jewlery cleaner from Walmart did actually remove that finger print. Unfortunately that coin is now a horrible odd discolorated coin. No fingerprint though. </p><p>If you do not know what your doing, not familiar with explosive or very flamable substances, don&#039;t attempt to experiment. Not worth your eyes.[/QUOTE]</p><p><br /></p>

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