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<p>[QUOTE=&quot;PenguineMinT, post: 95729, member: 4682&quot;]Most strong acidic solvents will work, I used what I had around. </p><p><br /></p><p><br /></p><p><b>A Warning:</b> Acids react to metals in different ways, many produce toxic fumes that WILL make you pass out, so remember to keep everything ventellated and such...</p><p><br /></p><p>Also, after you take the coins out of the acid, immedatly put them into a solution of baking soda and water so that you neutralize the acid, otherwise the acid will oxidize the metal again once it comes in contact with air.[/QUOTE]</p><p><br /></p>

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