Deep fried coins and other cleaning methods

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Joined
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I really enjoy this guys vids, he gets such good results with his cleaning methods. Have a watch...

 
Better get myself some sawdust and paraffin. The second cleaning of the silver/copper coin was of particular use over just citric acid, and the copper coin conservation was also interesting. Thanks for putting that up Colin. :)
 
The acid foil reaction works very well, just tried it this morning on some coins and rings that I couldn't clean any other way. I just substituded the tartaric acid to citric acid and it worked well. Most of the coins were already toasted from being in the ocean but a small silver ring that was not already pitted came up a real treat.

The reaction is quite exothermic almost hot enough to burn so be careful, quite a lot of rotten egg (hydrogen sulphide) gas is expelled during the reaction too and it almost dissolves the foil used.

Before
1469244053_20160613_135943.jpg

After
1469244053_20160723_131312.jpg
 

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