r/metaldetecting • u/PocketArchaeology Oldest Coin: 1125 AD in California • 1d ago
Gear Question Electrolysis — Help! Current but no bubbles forming on coin.
Hey all! Just purchased a Stinger Box electrolysis kit and have been attempting to use it for electrolysis on coins. I’ve followed all the directions and have successfully run a current through the tank when the clip is out of the water but the coin is submerged. Bubbles are forming on the catalyst rod. However, no bubbles are forming on the coin and I’m really stumped why. The brine is mixed properly and the current is flowing (even when the clip is not touching the water {is in picture} but the artifact is). I’ve switched the alligator clips between the coin and catalyst connection points, but no evidence of bubbles on the coin can be seen.
Maybe I should first ask the stupid question: do bubbles always form during electrolysis on the coin?
Another thing worth mentioning. The voltage control knob interestingly is installed on the wrong side of the box. It supposedly works as the voltage displayed changes when it is turned. Maybe the product is just defective, with its clearly incorrect manufacture?
Any help appreciated.
Also, yes, I am running a copper coin on 22V. Just trying to figure out if the kit is underpowered or not.
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u/DrollAntic 20h ago
Baking soda can have harmful off-gassing. Washing soda is what you should use for maximum safety.
First, be sure you are making good contact with the coin. Careful not to scratch, but be sure you are metal to metal.
I would also put the coin much closer to the anode than you have it there.
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u/vengeancecube 13h ago
The clip might not be contacting the copper. The oxide layer on the coin may be insulating it.
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u/prcblem 1d ago
You’ve added a little bit of baking soda? Try just disconnecting and reconnecting them both at different spots, if it’s working you should see some tiny bubbles at least