electrolytic deoxidation examples

Discussion in 'Coin Chat' started by bruthajoe, Dec 10, 2019.

  1. bruthajoe

    bruthajoe Injured

    Experimenting in coin brightening. Heavily circulated coins.
     
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  3. bruthajoe

    bruthajoe Injured

    Here I have an example of a very brown wheat cent which I've brightened using electrolosys. Don't worry. I checked. This was 1 cup filtered water one tbsp baking soda, pinch of iodized salt, boiled and dissolved. 9v battery copper speaker wire negative to coin and graphite from carpenter pencil as cathode positive. Acetone bath first. Don't forget to rinse. I like it but you be your own judge. 191210_152525.jpg 191210_154530.jpg
     
    Last edited: Dec 10, 2019
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  4. bruthajoe

    bruthajoe Injured

    Very simple setup IMG_20191210_171221.jpg
     
  5. bruthajoe

    bruthajoe Injured

    This one turned a purple hue. Pretty cool. IMG_20191210_173626.jpg
     
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  6. Amos 811

    Amos 811 DisMember

    I love it, I am going to have some fun playing around with this.......I wonder what 3 extra volts could do?
     
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  7. bruthajoe

    bruthajoe Injured

    experiment please first, I think 9v is pretty strong. only took 1 minute for this setup. Don't forget to post your experience. :happy: GL, OH and don't forget to rinse in filtered water!!!
     
    Last edited: Dec 10, 2019
  8. bruthajoe

    bruthajoe Injured

    Here's some silver, I'm not thrilled although it undeniably cleaner, I think I like my silver dirty. 191125_004129.jpg 191210_175410.jpg
     
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  9. Amos 811

    Amos 811 DisMember

    Its funny, cause i started setting aside the darker coins I find, starting to like their tone...
     
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  10. bruthajoe

    bruthajoe Injured

    Yup me too, patina is nice on silver but copper is just UGLY, IMO.
     
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  11. bruthajoe

    bruthajoe Injured

    I've done some brightning on zinc coins with MS-70 though and I do like the results.
     
  12. Amos 811

    Amos 811 DisMember

    Copper cents are my most fav coin, zinc however, my least fav.
     
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  13. bruthajoe

    bruthajoe Injured

    Yeah not too much to like about that cheap zinc there's some Nickel in it though if it makes you feel better. And hey don't forget negative to the coin do not reverse the polarity you'll ruin your coin.
     
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  14. -jeffB

    -jeffB Greshams LEO Supporter

    I'd leave out the salt. Even though some of them will be chased to the other electrode, chloride ions are never great news for copper. Plus, they'll effectively turn into bleach as the reaction progresses, which is even worse for coins.
     
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  15. bruthajoe

    bruthajoe Injured

    Hey Jeff, Yea I tried with and without, you get different effects. The amount of iodized salt I used on the first one was tiny not even 1/4 tsp per cup. Without the salt tends to get very coppery. Plus I rinse well. I'm confident the result is locked in but if it changes I'll post here. Sorry I retract the coppery effect... That happens with the vinegar. I'll post a pic of elec with no salt...
     
    Last edited: Dec 10, 2019
  16. Arkos

    Arkos Member

    I am not a huge fan of toning, but looks pretty good
     
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  17. bruthajoe

    bruthajoe Injured

    191210_182859.jpg I did this one with heat first, Yikes!!!
     
  18. Amos 811

    Amos 811 DisMember

    I love the fact we have these cheap wheats we can toy around with.
     
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  19. bruthajoe

    bruthajoe Injured

    Results may vary. I'm finding it difficult to get consistant results. Could be due to the actual surface of coins. Salt did not make much difference. 191210_200155.jpg
     
  20. Amos 811

    Amos 811 DisMember

    do you leave the positive end out alltogether?
     
  21. Amos 811

    Amos 811 DisMember

    whats the graphite do then, or why bother even hooking that up?
     
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