Cleaning your coins.

Discussion in 'Coin Chat' started by National dealer, May 31, 2004.

  1. coincleaner

    coincleaner New Member

    this thread is exactly on point to a question I posed in my introduction yesterday.. if anyone doesn't mind clicking over to the introductions and looking for me, i've posted two pictures of a peace dollar and wondering if the coin has been cleaned -- I have additional pictures if anyone thinks it is necessary/helpful to make a determination. Additionally then, are people saying that even soaking a coin in distilled water is cleaning the coin and can adversely affect value?
     
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  3. GDJMSP

    GDJMSP Numismatist Moderator

    From a technical point of view - yes. Does it hurt it or affect value - no.
     
  4. stainless

    stainless ANTONINIVS

    Doug, I have a coin that I put under distilled water...although it has cartwheel luster...you can tell it has been cleaned, as the cartwheel luster isn't strong like it should be. This would certainly hurt the value, wouldn't it?


    stainless
     
  5. GDJMSP

    GDJMSP Numismatist Moderator

    Yes it would. But it wasn't the water that did the damage.
     
  6. stainless

    stainless ANTONINIVS

    What was it then? All I did was rinse and dabbed it with a napkin to dry ( I was new..lol)


    stainless
     
  7. GDJMSP

    GDJMSP Numismatist Moderator

    I imagine whatever damage there was on the coin was done before you ever got it. You just washed some dirt off that made the damage visible.
     
  8. jburke53

    jburke53 New Member

    I have 20 silver uncirculated quarters and 8silver uncirculated dollars that I’ve unwisely stored in the flip sleeves for 12 years or so and now have a green haze to them. Do I need to dip them in Aceton and if so will that reduce their value? Thanks in advanced
     
  9. GDJMSP

    GDJMSP Numismatist Moderator

    Howdy jburke - Welcome to the Forum !!

    Yes, you need to dip them in pure acetone (not fingernail polish remover). The coins may or may not be damaged, you won't know until you are done.

    But get 3 shallow bowls, soak each coin, 1 at a time, in the first bowl for 10 minutes or so. Then place the coin in the 2nd bowl for 10 minutes and then in the 3rd bowl. Then dispose of that acetone, rinse the coin in distilled water and allow to air dry.

    Use new acetone for each coin and repeat the process.
     
  10. stainless

    stainless ANTONINIVS

    Hey Doug, this is probably a dumb question, but if you let it airdry, couldn't it get water spots all over it?

    just a thought...


    stainless
     
  11. desertgem

    desertgem Senior Errer Collecktor Supporter

    Stainless, pure distilled water shouldn't leave water spots as the spots are the salts in non-distilled water which precipitates onto the coin. If a spot forms, try another brand. It is not unusual to find some salts in the "inexpensive" distilled water used for irons, humidifiers, etc. All methods of distillation production can produce contaminates. Distilled water stored in plastic vinyl bottles can contain vinyl chloride compounds. If the water tastes very flat or "plastic like", I would use other ....Theoretically.............however, the level of vinyl compounds and even chemicals like sodium, calcium, etc. is probably much higher in the household environment's air than in commercial distilled water......

    If every coin you have is in an "airtite" holder for safety, then use lab grade distilled water. :)

    Jim
     
  12. jburke53

    jburke53 New Member

    Thank you for the advice
    I wanted to make sure I didn’t compound my mistake
     
  13. 5Thousandbucks

    5Thousandbucks New Member

    I have some old coins from my grandparents that look really used alot.
    Some are dirty and have like black goo on them
    Should I clean them, if so what would be the best way?
    I have a jewelry cleaner will that work?

    5TB
     
  14. FreakyGarrettC

    FreakyGarrettC Wise young snail

    Do you know what the coins are?
    You could always send it to me for cleaning. :goofer:
     
  15. TC2007

    TC2007 Senior Member

    How do you dispose of the acetone once it's been used?
     
  16. FreakyGarrettC

    FreakyGarrettC Wise young snail

    Down the drain....
    Just dont get it on plastic, paint, or cabinets.
     
  17. desertgem

    desertgem Senior Errer Collecktor Supporter

    From MSDS
    Acetone is not a hazardous air pollutant (HAP) under the federal Clean Air Act Amendments of 1990.
    Acetone is very biodegradeable and has more hazards due to use than accumulation in the environment. Regulations on recycling or disposable as hazardous materials vary from state and county of residence. Any stored acetone I may have that is no longer usable for coins due to dissolved plastics, pvc, etc from the coins, I can take to the Hazardous waste facility associated with my city trash company. The last time I took in a quart can, they had a funny smirk on their faces , as they are use to dealing with drum sizes. In many areas, only spills of 5000 gallons or more have to be reported as Hazardous.

    Hope this helps,

    Jim

     
  18. RickieB

    RickieB Expert Plunger Sniper

    For small unsed volumes of Acetone, need not worry about proper disposal..simply leave it open to a flameless atmosphere to evaporate quickly!

    Therfore the non hazardous air polluant rating!
    Always use MSDS sheets when working with an unfamiliar liquid and follow the suggestions listed as well as treatment guidelines. Wear gloves, yep the good ole snap the Doc give it and then says "grab your ankles, Son"


    RickieB
     
  19. GDJMSP

    GDJMSP Numismatist Moderator

    You might want to look under the sink first, most drains are plastic.
     
  20. FreakyGarrettC

    FreakyGarrettC Wise young snail

    OMG.... :eek:
    I have been melting plastic cars with it all day then sending it down the drain
    oops....... :mad:
     
  21. Tallbassguy

    Tallbassguy Member

    I've read thru most of this thread, and still dont know for sure if cleaning is bad or good.
    I have cleaned a couple of coins with little value with a small amount of lava hand soap on my finger tips and rubbed with my fingers. I was able to shine it up as well.
    I wanted to use this silver to drop in my drinking water for anti-biotic reasons.
    The coin is worth the silver value, and very little else. A circulated well worn 1925 Peace dollar.
     
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