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<p>[QUOTE="Circus, post: 4351604, member: 51195"]It has the look of some of the items that were in a fire, could have been in a flip when it happened.</p><p>When working with copper in jewelry the cleaning solution(pickle) that is is used is sodium bisulfate (swimming pool pH raising chemical) works best when heated BUT DO NOT BOIL! as it will generate dangerous fumes use only in a glass container and don't use any steel tweezers. Since the steel will react with the solution and flash copper plate the item in it. To neutralize the solution and baking soda, then flush down the pipes. That might help clean it up more.[/QUOTE]</p><p><br /></p>
[QUOTE="Circus, post: 4351604, member: 51195"]It has the look of some of the items that were in a fire, could have been in a flip when it happened. When working with copper in jewelry the cleaning solution(pickle) that is is used is sodium bisulfate (swimming pool pH raising chemical) works best when heated BUT DO NOT BOIL! as it will generate dangerous fumes use only in a glass container and don't use any steel tweezers. Since the steel will react with the solution and flash copper plate the item in it. To neutralize the solution and baking soda, then flush down the pipes. That might help clean it up more.[/QUOTE]
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