Is Alcohol Safe For Coins? - Page 2

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tdziemia Pillar of the Community United States 7955 Posts	Posted 02/04/2023 09:21 am On the scale of solvent polarity, alcohols are more polar than acetone, and less polar than water. So they will be less effective at removing oily/greasy stuff than acetone or "mineral spirits" (hydrocarbons). To the best of my knowledge, there is no reaction with coinage metals or their oxides, sulfides or carbonates (tarnish, verdigris). Report this Post to the Staff
Slerk Pillar of the Community Russian Federation 1557 Posts	Posted 02/10/2023 11:24 pm Continuing the topic, how can such finger marks be removed? Report this Post to the Staff
Dorado Bedrock of the Community Canada 24885 Posts	Posted 02/10/2023 11:33 pm Search the Coin Community Family of Websites finger marks be removed ? https://www.coincommunity.com/numis...F&gsc.page=1 Report this Post to the Staff
HondoB Bedrock of the Community United States 25419 Posts	Posted 02/10/2023 11:42 pm Slerk, fingerprints such as the ones on your coin cannot be removed. Acidic oils in the fingerprints have chemically reacted with the surface metal of the coin, and they are now permanent. If I am incorrect and you find a way to remove them without damaging the coin, please let me know. I have a 1909 VDB Lincoln Wheat cent that would benefit from this treatment. Inordinately fascinated by bits of metal with strange markings and figures Report this Post to the Staff
John1 Moderator United States 56855 Posts	Posted 02/11/2023 03:52 am E-Z-est coin dip might work but it will ruin the coin. John1 Report this Post to the Staff
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