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<p>[QUOTE=&quot;Oldhoopster, post: 7912766, member: 84179&quot;]You still don&#039;t understand how acetone works, even though it&#039;s been posted.</p><p><br /></p><p>* Acetone is a solvent.&nbsp; It will remove many types of organic crud, residue, and dirt from the surface of a coin.</p><p>* Acetone WILL NOT remove toning or other substances that are formed when the metal atoms on the surface reacts with the atmosphere or environment. This includes oxides and carbides That you referenced (can carbides even form on a coin?)</p><p>* There may be corrosion or toning variations under the residue that can become noticeable after a soak/rinse.&nbsp; These were not caused by acetone.&nbsp; They were caused by the organic crud that the acetone removed.</p><p>* The dissolved organics stay in the acetone.&nbsp; Since it evaporates quickly, the residue can be redeposited onto the coin.&nbsp; That&#039;s why it&#039;s important to change the solvent frequently. Also, never let the acetone completely evaporate from the container while soaking.&nbsp; The residue will be redeposited.</p><p><br /></p><p>Members have taken the time to help you.&nbsp; You could at least take the time to read their posts. Hopefully, this will help other members learn how acetone works and are confused by misleading comments.[/QUOTE]</p><p><br /></p>

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