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<p>[QUOTE="PEdoubleNIZZLE, post: 171185, member: 794"]the PERFECT cleaner would have a pH of 7.0... a.k.a. distilled water. If I can't get it off with water, I won't try, unless cleaning will raise the value of a coin. I do clean some display coins, such as custom 20th century coin holder, and I've even replated some 1943 cents (lots of places do it, including Littleton Coins, except they overprice theirs). But, something that's very alkali or very acidic will ruin the coin. Many people don't know that little piece of chemistry (e.g. "battery acid" from an alkaline battery is actually a base, but if it gets on your skin, it will still burn, and you need vinegar or a similar acid to neutralize it if this ever happens... fun but useful piece of trivia)</p><p><br /></p><p>Also, if you can't get distilled water, pour some water in a container and let it sit for at least 24 hours (add enough so it doesn't all evaporate) to get rid of the chlorine. </p><p><br /></p><p>But I don't even use windex for my coin holders/displays! I actually use an alcohol swab, as it isn't as mseey and does just as good (or even better) at cleaning as windex.[/QUOTE]</p><p><br /></p>
[QUOTE="PEdoubleNIZZLE, post: 171185, member: 794"]the PERFECT cleaner would have a pH of 7.0... a.k.a. distilled water. If I can't get it off with water, I won't try, unless cleaning will raise the value of a coin. I do clean some display coins, such as custom 20th century coin holder, and I've even replated some 1943 cents (lots of places do it, including Littleton Coins, except they overprice theirs). But, something that's very alkali or very acidic will ruin the coin. Many people don't know that little piece of chemistry (e.g. "battery acid" from an alkaline battery is actually a base, but if it gets on your skin, it will still burn, and you need vinegar or a similar acid to neutralize it if this ever happens... fun but useful piece of trivia) Also, if you can't get distilled water, pour some water in a container and let it sit for at least 24 hours (add enough so it doesn't all evaporate) to get rid of the chlorine. But I don't even use windex for my coin holders/displays! I actually use an alcohol swab, as it isn't as mseey and does just as good (or even better) at cleaning as windex.[/QUOTE]
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