A penny doesn't technically "rust." The copper plating corrodes, resulting in green surface tarnish. The corrosion is from oxidation — a chemical reaction between the metal and oxygen, water and carbon dioxide
very helpful. I collect elongated pennies (you know, those penny smashing machines you see in museums and whatnot) however, after a while the pennies would start to lost their shine because of oxidation (in layman's terms: when the pennies are exposed to air, they lose their shine ...
Some sources say that the more pennies in the mouth, the better, although they must be discreetly discarded before the test. The zinc and copper of the penny (not to mention the grime it has accumulated while in circulation) supposedly neutralize or mask the actual level of alcohol by induci...
An amusing yet effective method is using ketchup.Apply a thin layer of ketchup over your pennies and allow them to sit for one to two minutes. Gently scrub with a toothbrush to lift away oxidation and grime. Rinse thoroughly and dry carefully afterward. This method is fun, especially for ch...
Question: In an experiment of electroplating of copper, how could I remove the copper plate from my key: a) Electrically? b) Chemically? Electroplatting The process of reduction of metal cations via electric current in order to form a meta...
How to make bronze / History of bronzeCurrent discussion:Q. Re. Harry C's suggestion: I was thinking of melting copper scraps first, then adding the calculated amount of 260 brass scrap to obtain proper zinc proportions, then add some tin solder and mix all before pouring. Comments?Jason...
s because they buy into the public view of scrappers or if they think they are so much better or smarter than the scrapper or if they are just so eaten up with greed that they would steal the pennies from a dead person eyes (yeah, I know, that’s kinda harsh but just bear with ...
When adding water, remove the old water so that the entire basin has clean water in it. Consider adding afountain pumpto your bird bath. This will keep the water moving, help with cleanliness, and discourage mosquitoes. Copper purification disksare designed to keep algae in bird baths low. ...
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Issuers can also delist a note (i.e., remove it from trading on a major exchange) without redeeming it. When that happens, the issuer no longer actively supports the note through the creation/redemption process. The note is not shut down, but trading moves to the so-called “pink sheets...