Acetone Effects - Page 2 - Coin Community Forum

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Author	Replies: 21 / Views: 4,169	Page: of 2

Wade Pillar of the Community Canada 2781 Posts	Posted 03/07/2015 10:07 pm depends on the coin, and the method of "cleaning" (as the term covers soooooo many methods/variables). generally speaking acetone rinse is considered ok as it removes organic material but doesn't react or alter the coin surface itself. Report this Post to the Staff
SPP-Ottawa Moderator Canada 10460 Posts	Posted 03/07/2015 10:31 pm Quote: but doesn't react or alter the coin surface itself ...except, mint state copper or bronze!! "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 Oppenheimer Content of this post is licensed under a Creative Commons Attribution-NonCommercial 3.0 Unported License. See: http://creativecommons.org/licenses...0/deed.en_US My eBay store Report this Post to the Staff
Altaira Pillar of the Community Canada 2519 Posts	Posted 03/07/2015 10:37 pm I skipped right to the discussion and conclusions but that was an interesting read. Interesting how metals catalyse reactions. Thanks for the link - I might find that site useful finding journals. Acetone itself does nothing to the metal so I don't consider it cleaning. It's the acetic acid produced that reacts with the copper. Edited by Altaira 03/07/2015 10:38 pm Report this Post to the Staff
Wade Pillar of the Community Canada 2781 Posts	Posted 03/08/2015 10:53 am Quote: but doesn't react or alter the coin surface itself Quote: ...except, mint state copper or bronze!! well ya, but who would clean MS copper or bronze ?!?!?! Report this Post to the Staff
Neo13x Pillar of the Community United States 604 Posts	Posted 03/08/2015 11:21 am Quote: well ya, but who would clean MS copper or bronze ?!?!?! Maybe there is a big greasy finger print that needs to be removed...or maybe the collector has a routine to rinse with acetone prior to storage regardless of condition. Copper turning purple after an acetone bath is new to me but I guess under the right/wrong conditions it can happen. I haven't experienced it and hope I never do. Report this Post to the Staff
Smallcentguy Pillar of the Community Canada 1984 Posts	Posted 03/08/2015 11:23 am Or to remove lacquer..... Report this Post to the Staff
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