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I have two 100 dollar bills with me, few years old. They have little bit of zinc (zung as in urdu) stains and due to that the money exchanges are hesitating to accept it, some are offering me rediculous prices.
Anyways so i was womdering if there is any tried and tested way of removing the stains or cleaning the bill…?
Dear, the “zung” (in Urdu) is translated to rust (in English), not to Zinc (which is a metal element http://en.wikipedia.org/wiki/Zinc).
WARNING: Follow the following procedure on your own risk. This is your money and you are responsible for all the actions. If some went wrong then don’t blame me. YOU ARE WARNED!
Having said that, soak your bills in room temperature water (not cold and not hot, just take water that has been standing in room for few hours).
Take a large glass bowl, fill it about a liter (or two liters) of room-temperature water. Take a clean glass tumbler (made of glass, not anything else), put that glass tumbler upside down on that bill while allowing all rusty part soaked in the water. The purpose of glass tumbler is not letting the bill to float in water but to dip it in water. After 5 or 10 minutes the rust will start to dissolve in water (water is a great solvent). Now remove glass and while the bill is in still in water, with your fingers, very very gently (the most gentle that you can do) rub with your finger-tip on the rusty part to remove remaining rust. All of rust may not get remove in first try. But at that point, do not soak further, remove the bill from water and put it on a clean white towel (do not use any colored towel). Do not rub. Do not try to dry it. Just let it sit there and let it air-dry within next few hours. Good luck with your money.