Can this bullion piece be saved?

Discussion in 'Coin Chat' started by Jeffjay, Jan 4, 2021.

  1. fretboard

    fretboard Defender of Old Coinage!

    dip.jpg
     
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  3. Jeffjay

    Jeffjay Well-Known Member

    Known
     
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  4. Kentucky

    Kentucky Supporter! Supporter

    only by the cognizant...
     
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  5. charley

    charley Well-Known Member

    this is true. value is, well, it is a wife thing...is it worth it to me or not.

    i was cognizant of, and wanted to be respectful of, his concern with experimentation concerning mirrors, once he elaborated.

    the point you make though, is excellent british subtle humor, which i enjoy very much (or humour, for my british compatriots).
     
  6. -jeffB

    -jeffB Greshams LEO Supporter

    "Dip" in this context does not contain acetone. It's a mixture of an acid and a chemical called thiourea. It attacks silver sulfide much more quickly than it attacks silver metal, so if you use it carefully, it can remove tarnish without leaving visible damage on the rest of the coin's surface.

    EZEst is one such dip. I've seen people talk about using diluted (with distilled water) EZEst to dip coins. As it comes in the can, EZEst is a kind of soft paste.

    Acetone won't dissolve silver sulfide, so it doesn't do anything to help tarnish.
     
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  7. Kentucky

    Kentucky Supporter! Supporter

    Actually thin blue liquid.
     
  8. Good Cents

    Good Cents Well-Known Member

    Is MS70 a dip that would help this kind of tarnish?
     
  9. GDJMSP

    GDJMSP Numismatist Moderator

    Help it ? Yes. Remove it ? Probably not. In other words, it would remove some but not all of it.

    MS70 is a mild coin dip. It will remove the beginning stages of toning (commonly called haze) but it will usually not remove toning that has progressed beyond the beginning stages. And the toning on that round has progressed pretty far.

    A regular commercial coin dip would remove it in about 1 second. In other words as fast as you could dip the coin in a pull it back out. And then rinse it in a neutralizing solution (baking soda dissolved in distilled water) as fast as you can. And then rinse it thoroughly in distilled water, followed by another rinse in clean distilled water, and then a 3rd rinse in clean distilled water.
     
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  10. Insider

    Insider Talent on loan from...

    Did you read the post that Acetone does not remove natural tarnish?
     
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  11. Good Cents

    Good Cents Well-Known Member

    Thank you Doug. This is great info. I have some silver rounds that I really like that are in fantastic condition and which I kept in Air-Tite capsules, but they got toned anyway. Because they are rounds and not coins, I was thinking of cleaning them somehow, but didn't know where to start and was just afraid to do it because of all the warnings on how easily they can be ruined.

    Is there any specific commercial coin dip that you can recommend to go along with your really clear instructions?
     
  12. Kentucky

    Kentucky Supporter! Supporter

    The only commercial coin dip I have ever used is eZest, which comes as coin cleaner or speed dip (I think the speed dip is a little stronger). I have a little plastic basket that came with some jewelry cleaner that I use. I wash my hands and get the running water as hot as I can...I then put the coin in the basket and give it a 30 second rinse under the hot running water...I then dip the coin for less than a second...in and out...back under the running water and check it out. Repeat till you're happy. Rinse, rinse and rinse. You could neutralize with a baking soda solution and/or rinse with distilled water. In any case, I like to lay the coin on a towel and blot it dry.
     
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  13. GDJMSP

    GDJMSP Numismatist Moderator

    e-Z-est is as good as any, better than some.

    But bear this in mind. You can ruin any coin you dip in a fraction of a second. And, dipping coins, any coin, is always a crap shoot - because you never know how it's gonna turn out !

    NOBODY should ever dip any coin until they gain experience with it ! And it takes a lot more than just a couple tries to gain experience. Ya need to practice - a lot ! And only with coins you don't care about because you are gonna ruin some.
     
    Last edited: Jan 6, 2021
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  14. medoraman

    medoraman Supporter! Supporter

    How it turns out is a big one also. Some coins are simply damaged under the tarnish, and no matter how expert you are applying the dip, it will be exposed. You didn't ruin it, the "toning" did.
     
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  15. GDJMSP

    GDJMSP Numismatist Moderator

    Yup, I've repeated that in more posts than I care to count.
     
  16. charley

    charley Well-Known Member

    of course i did. why would you think i am not familiar with what acetone can and can not remove?
     
  17. Insider

    Insider Talent on loan from...

    Insider asked Charley, "Did you read the post that Acetone does not remove natural tarnish?"

    THE POST: jeffB, posted: "Acetone won't touch tarnish. You'd need something like a thiourea dip, or the old aluminum-foil-and-baking-soda-in-water trick."

    charley replied: "of course i did. why would you think i am not familiar with what acetone can and can not remove?"

    I thought you may have missed the fact that acetone is not used to remove tarnish BECAUSE YOU WROTE THIS:

    charley, posted: "...in the spirit of offering an alternative that may be useful (probably not since i don't know much) then i would start with a common store branded jar of nail polish remover [ACETONE] at the cvs/walgreens, etc..." :smuggrin:
     
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  18. charley

    charley Well-Known Member

    and?
    i suspect you do not understand why i suggested what i did.

    that is ok. no harm no foul.

    i am comfortable with my suggestion.
     
  19. Insider

    Insider Talent on loan from...

    charley, posted: "and? i suspect you do not understand why i suggested what i did.
    that is ok. no harm no foul. i am comfortable with my suggestion."

    :rolleyes: Actually, I do (you posted the reason in parenthesis). That's why I tried to help out. ;)
     
  20. medoraman

    medoraman Supporter! Supporter

    Be very careful. I would never, ever suggest nail polish remover. Different brands but different stuff in there. You never know what besides acetone will be in the bottle. Better, (in my opinion), to suggest going to hardware store and buy a canister of pure acetone as a suggestion. It is cheaper by far per ounce than nail polish remover, and you are guaranteed pure acetone.
     
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  21. charley

    charley Well-Known Member

    i am good, but thanks. re-read my post.
     
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