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 Replies: 20 / Views: 2,452 |
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Pillar of the Community
Canada
3328 Posts |
Good to know. I have not cleaned many of my coins, only a few cent coins to test out the efficiency against the green stuff on cents. The odd time it made the green turn almost a blue colour and spread, further, after which I soaked for 24+ hours and it usually got rid of the green/blue but just revealed the pitting underneath. If I do clean more of my cents I'll remember to try distilled water first. I read for nickel coins distilled water is better then acetone, but don't study much about cleaning coins since I usually don't clean them. I guess to each there own. I'm sure there is cleaning methods people use that are effective safe and others don't know about. I have heard of olive oil being used to remove surface gunk etc as well though don't know if it's safe.
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Pillar of the Community
 Canada
5596 Posts |
Actually, Haxby uses boiling distilled water to remove the Vicky gunk, but only if the coin is full of crap and he can't see all the markers.
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Pillar of the Community
United States
1353 Posts |
Bill, I have done that for the same reason as Haxby. The heat tends to wash out the surface of the coin and leave it a very blah, dull brown. Works like a champ to remove the gunk. You will not get one through a TPG after that. http://www.victoriancent.com2011 & 2025 Fred Bowman Literary Award Winner, 2020 J. Douglas Ferguson Award Winner, & 2022 Paul Fiocca Award Winner. Life Member of RCNA.
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Pillar of the Community
Canada
3328 Posts |
Is this specific to cleaning cents or all coins? As this is a thread based on a a cent coin I want to assume it's specific to copper coins? I have a lot of cents that could use a good "cleaning". But I would rather not destroy the coin to do so.
Anyways I'd like to see both sides of the coin.
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Pillar of the Community
United States
579 Posts |
Well,
Maybe practice on some coins that wouldn't change value one way or another.
Maybe you can find a way that works for you.
I personally haven't found a good way to clean copper or bronze and retain color and luster.
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Moderator
 Canada
10464 Posts |
Photos are not clear enough to tell. Looks like either a die chip or a little folded over lamination peel.
Nothing in the Zoell catalogues or Houle book of a die chip in that region.
"Discovery follows discovery, each both raising and answering questions, each ending a long search, and each providing the new instruments for a new search." -- J. Robert OppenheimerContent of this post is licensed under a Creative Commons Attribution-NonCommercial 3.0 Unported License. See: http://creativecommons.org/licenses...0/deed.en_USMy eBay store
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Moderator
Canada
10464 Posts |
Quote:
Actually, acetone can sometimes react with impurities on the surface of copper and bronze coins and turn them purple. Does not happen often, but it does happen. You are unlikely to get a coin graded MS-62Purple. This also happens as a photochemical reaction between mint state copper and/or bronze and the acetone with sunlight or bright light. It leaves a "gasoline on water" rainbow effect on the coins. http://www.sciencedirect.com/scienc...468601003590"Discovery follows discovery, each both raising and answering questions, each ending a long search, and each providing the new instruments for a new search." -- J. Robert OppenheimerContent of this post is licensed under a Creative Commons Attribution-NonCommercial 3.0 Unported License. See: http://creativecommons.org/licenses...0/deed.en_USMy eBay store
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Pillar of the Community
United States
1353 Posts |
I learned this the hard way once. I had a 1913 cent in about 62RB. Tried to take a PVC spot off with acetone. Instant MS-62 Purple.
http://www.victoriancent.com2011 & 2025 Fred Bowman Literary Award Winner, 2020 J. Douglas Ferguson Award Winner, & 2022 Paul Fiocca Award Winner. Life Member of RCNA.
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Pillar of the Community
Canada
3328 Posts |
From what I have gathered from this thread, as long as the copped/bronze coin soaking in acetone is in a moisture free environment with no to little light should result in no issue to the coin being soaked. This does not account for foreign chemicals that may be on the coin. So a distilled water rinse followed by a proper drying and an acetone soak in a sealed container away from UV rays should be completely safe and not harm the coin. Great cleaning info.
Let's stop the cleaning debate and focus in the OPs coin and there question. I had no intent to hijack this post and turn it into a cleaning coin topic.
Still waiting on obverse pics, I have no comment on the issue between the 1 and 5 based on the photos. If it comes if with a "proper cleaning" then it's foreign substance in the coin, if not then a possible lam or maybe something else. Definitely looks to smooth to be a die chip IMO.
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Pillar of the Community
Canada
9191 Posts |
For copper Verdi-Care is the best.
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New Member
 Germany
12 Posts |
Thanks for all the responses - I cleaned it off with a little water and took another picture. Pictures taken with a handy shaking are not that easy. I will try the distilled water first (have some in the Garage). Reading up on Acetone. Is there a difference between Acetone and Acetone nail polish (probably more additives.) What about an ultrasound machine my wife uses to clean her silver? (with normal water)
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Bedrock of the Community
United States
94367 Posts |
No pics yet!  |
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New Member
Germany
12 Posts |
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Pillar of the Community
United States
2973 Posts |
There is a big difference in nail polish remover (which uses acetone as its primary ingredient), verses pure acetone which is the recommended way to use on coins.
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New Member
Germany
12 Posts |
I will try again. have no idea what's going on.   |
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Replies: 20 / Views: 2,452 |
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First Page
Posted 01/06/2022 4:31 pm
