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Question:

Removing the copper coating on a penny?

How can i remove the copper from a penny without using a metal file to grind it away cause that is taking too long. Can i remove the copper with household items?

Answer:

Any acid that will dissolve copper will dissolve zinc much faster. (1) One way that will work is potassium persulfate combined with potassium cyanide. This solution will slowly remove copper without touching zinc. (1) Since you probably don't have any cyanide in the house, you can use an acid solution. This will not leave you a zinc penny. But, since you are sanding now, you probably don't care about looks – you just want the zinc. If you do use acid, you will need to get the penny out just after the copper dissolves because once the zinc is exposed to the acid, it will dissolve quite fast. Here's one way:(2) 1. Add 20 mL concentrated nitric (HNO3) acid for each penny. 2. Let the copper on the penny completely dissolve 3. Remove the zinc core using a pair of forceps 4. Rinse with water to remove all the acid Also, you should be aware, as mentioned by others, that regulations regarding unauthorized melting or treating of pennies can be enforced by the United States Secret Service, and violators are subject to the statutory penalty of up to $10,000 fine or five years imprisonment, or both. (3)
tomato soup. The acid will eat away at the copper. Or you can get a PhD in chemistry like the other answerer
Zinc reacts with mineral acids. Copper would not (except oxidizing acids). examine out the pastime series of metals. those above hydrogen can replace it from acid and grace their respective salt.
The United States Codes under Title 18, Chapter 17, and Section 331, prohibits the mutilation, diminution and falsification of United States coinage. However, it has been the opinion of some individual officers at the Treasury Department, though without any indication of approval, the foregoing statute does not prohibit the mutiliation of coins if done without fraudulent intent or if the mutilated coins are not used fraudulently.
WTF..Just leave the currency alone..You cannot deface government property..Find a new hobby.

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