Cleaning silver coins

Discussion in 'Silver Coins' started by zachary898, Jan 29, 2018.

  1. Jislizard

    Jislizard Well-Known Member Silver Stacker

    Joined:
    Apr 7, 2011
    Messages:
    7,840
    Likes Received:
    628
    Trophy Points:
    113
    Location:
    Australia
    They look good!

    I don't bother with a cotton tip anymore, I just use my thumb but it aches after a while and gets really dirty, plus dries the skin out a bit!
     
  2. zachary898

    zachary898 Member

    Joined:
    Sep 11, 2010
    Messages:
    132
    Likes Received:
    3
    Trophy Points:
    18
    Location:
    Brisbane
    Thanks Jislizard, It felt like i was rubbing off my finger nails :eek:
     
  3. JOHNLGALT

    JOHNLGALT Well-Known Member

    Joined:
    Apr 3, 2017
    Messages:
    2,822
    Likes Received:
    953
    Trophy Points:
    113
    Location:
    Country Victoria Australia
    I use this product - Connoisseurs which can be bought from some Jewellery stores and costs about $20.

    You just put it in a glass container put your coins in jiggle them around for about 1 minute, then pour the SILVER DIP back into your original container.

    I rinse the coins in warm water & then lay them out on newspaper, or dry with a cloth.
    The job is finished in 10 minutes.
    Warning: the dip will damage (stain) your metal sink if you spill it on there.

    For larger items with intricate patterns I use a soft tooth brush dipped with the stuff. Cheers _JLG.
    Connoisseurs.JPG
     
    Silverling likes this.
  4. Silverling

    Silverling Well-Known Member Silver Stacker

    Joined:
    Aug 13, 2017
    Messages:
    1,414
    Likes Received:
    1,411
    Trophy Points:
    113
    Location:
    NSW
    Interesting, another good tip, thanks.
     
    JOHNLGALT likes this.
  5. Ronnie 666

    Ronnie 666 Well-Known Member Silver Stacker

    Joined:
    Mar 16, 2011
    Messages:
    2,459
    Likes Received:
    107
    Trophy Points:
    63
    Location:
    Australia
    The Silver dips like the one above, Goddards and Ezest are thiourea in an acidic solution. Thiourea is carcinogenic so please wear gloves. It only removes tarnish on Silver and coin dip should be quick otherwise it damages the surface.
    The best cleaning agent which does not remove tarnish is MS70 which is KOH. You can use sodium hydroxide also works well - very corrosive but safe on 999 gold and silver coins okish for 925. Wouldn’t use on anything less than 925. Not for copper. None of these methods removes milk spots. For that you need other methods.
     
    JOHNLGALT likes this.
  6. Jislizard

    Jislizard Well-Known Member Silver Stacker

    Joined:
    Apr 7, 2011
    Messages:
    7,840
    Likes Received:
    628
    Trophy Points:
    113
    Location:
    Australia
    I used some very old silver dip, it cleaned the coins nicely but then they turned golden. Not a bad look and still nice and shiny, but gold in colour.

    Copper coins in cloudy ammonia and bi-carb just end up looking really weird, worth a try just for fun.
     
    JOHNLGALT likes this.
  7. JOHNLGALT

    JOHNLGALT Well-Known Member

    Joined:
    Apr 3, 2017
    Messages:
    2,822
    Likes Received:
    953
    Trophy Points:
    113
    Location:
    Country Victoria Australia



    Never us Silver dip to clean copper coins, that may be your problem if you have put the solution back in the container after cleaning copper with it.


    Somebody suggested cloudy ammonia to clean some silver crocodiles - what a no, no.
    I ended up using a white pencil eraser to fix the problem. (bought from the Newsagents). _JLG.
     
  8. Jim4silver

    Jim4silver Well-Known Member

    Joined:
    Apr 3, 2015
    Messages:
    2,043
    Likes Received:
    857
    Trophy Points:
    113
    Location:
    US
    I have tried several types of dips (tarnish removers) over the years. The best one I've used that doesn't harm the coin (to the naked eye) if used properly is Tarnx. I don't know if they sell it in Oz or if it is the same formulation there, but I like it better than the blue liquid dips (although they are good too).

    I don't advise people to dip coins generally. But sometimes I get a coin with mild unattractive toning that I can "fix" and make it look perfect. I pay close attention to the coin's mint luster and don't want to ruin that. The coins I dip aren't darkly toned (those never come out right). I appreciate attractive toning and leave those coins alone. I would never dip any coin that has any numismatic value (rare coins, old coins, etc).

    My technique with the Tarnx is to put one or more coins in a plastic butter type container and pour enough to just cover the coins. Gently swirly the contents around for up to 5-6 seconds max without having the coins bang against each other. The light toning disappears fast. Pour out the Tarnx carefully and rise, then let the coins dry on towel carefully (no rubbing coins and wear gloves).

    I've seen it take off "some" fingerprints as well with no damage showing afterwards.

    PS The bottle says to put it on towel and rub to apply - that's only for silverware - NOT COINS.

    https://clrbrands.com/Products/Tarn-X/Tarn-X-Tarnish-Remover
     
    JOHNLGALT likes this.
  9. JOHNLGALT

    JOHNLGALT Well-Known Member

    Joined:
    Apr 3, 2017
    Messages:
    2,822
    Likes Received:
    953
    Trophy Points:
    113
    Location:
    Country Victoria Australia
    We do get the CLR products Down-under Jim4. I wonder if, after using it on copper it is o.k. to use it on silver.

    Good post, thanks.
     
    Jim4silver likes this.
  10. Jim4silver

    Jim4silver Well-Known Member

    Joined:
    Apr 3, 2015
    Messages:
    2,043
    Likes Received:
    857
    Trophy Points:
    113
    Location:
    US
    Never tried it on copper or gold.
     
  11. BrianCasey

    BrianCasey New Member

    Joined:
    May 16, 2019
    Messages:
    1
    Likes Received:
    1
    Trophy Points:
    3
    Great advice! I am happy to find it and to follow. Especially after the recommendation of such a respected professional in the area having great experience in cleaning service of all the types. Thanks!
     
    JOHNLGALT likes this.
  12. Calendyr

    Calendyr Member

    Joined:
    Jan 14, 2020
    Messages:
    70
    Likes Received:
    20
    Trophy Points:
    8
    Location:
    Montreal, Canada
    From what I have read online, vinegar and salt will clean coins very well. I remember doing that about 35 years ago on pennies and they came out looking like new without having to rub.

    From what I have read, it works well on silver too.

    For gold, you don't need to do any of that, just soak in water with a mid detergent to remove the oils and dirt from the surface. Gold's doesn't oxyde.
     
  13. Ronnie 666

    Ronnie 666 Well-Known Member Silver Stacker

    Joined:
    Mar 16, 2011
    Messages:
    2,459
    Likes Received:
    107
    Trophy Points:
    63
    Location:
    Australia
    All these suggestions are great if you want to destroy any numismatic value of the coins. The silver dip is no more than thiourea with sulphuric acid in a weak detergent. It removes toning ( which usually has no negative impact on a coin and may increase its value) but also rapidly removes the lustre of a struck coin if you are not very careful. Best advice is do nothing. There are ways to restore Silver coins but these methods described above are not going to add any value only destroy the coin surface. Copper is a real challenge and the best advice is to use Verdi-care a product available to stabilise the coin surface and remove green verdigris.
     
  14. JOHNLGALT

    JOHNLGALT Well-Known Member

    Joined:
    Apr 3, 2017
    Messages:
    2,822
    Likes Received:
    953
    Trophy Points:
    113
    Location:
    Country Victoria Australia
     

Share This Page