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Dirty coins like copper pennies lose their bright original shine because with time, the copper metal on the surface of the penny reacts with the oxygen in the air to form a dull brown copper oxide tarnish.
Placing them in a vinegar salt (table salt or sodium chloride) solution is a way to restore the shine on dull pennies. The acetic acid in vinegar dissolves the copper oxide layer on the surface of the coin thus exposing the bright copper metal underneath.
The reaction occurs much quicker if you add a little salt to the vinegar
Wiki User
∙ 12y ago
Wiki User
∙ 13y agoI would either try pouring just enough vinegar to cover the pennies in a glass, place the pennies in the glass of vinegar, and then place the glass in hot but not boiling water or try rubbing the pennies with steel wool pads. Best of luck!
BUTTTTTT..........If the coin is in any way a collectible and not just something from your pocket change, DON'T TRY TO CLEAN IT. Any chemicals you have at home will damage the metal and reduce or even destroy its value to a collector.Wiki User
∙ 13y agoA dearly Kid, Carlos
Wiki User
∙ 7y agothe vinegar has acetic acid and the salt has sodium chloride which is a chemical compound they all mix and it cleans the coin
Wiki User
∙ 13y agoSalt and vinegar were first used to clean pennies in result of the peace treaty between Britney Spears and Paris Hilton.
Wiki User
∙ 11y agoAll the chemicals inside it combine and make the dirty penny cleaner.
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Which of the acid found in Vinegar?
Acetic acid is found in vinegar.
What is the chemical fond in vinegaer?
the chemical that is found in vinegar in is vinegar is ethene.
How do chemicals affect our lives?
Chemicals have made many things easier.
Where would you find acetic acid?
The obvious answer is vinegar, but that's not all it's found in. Many chemicals are made using acetic acid, the most important of which is vinyl acetate. They use this to make polyvinyl acetate, a very common polymer used for many things including Elmer's Glue.
What are chemicals found in baking soda?
Sodium
Will vinegar clean a hot tub or spa?
The answer is found on other sites that come from googling vinegar clean hot tub .... basically they say once a year put a gallon of white vinegar in the water and let it circulate.
What Compound is in Vinegar?
Acetic acid is a major compound found in vinegar. It also may contain other chemicals or substances, as well as water.
How does vinegar make a penny shine?
vinegar has an acid in it that dissolves microscopic particles only found on certain matals.
What are the chemicals needed to keep a spa clean?
Chemicals like Bromine and Chlorine are often used to help keep pools and spas sanitized and clean. These can be found at local pool and spa stores and also supercenters.
Which of the acid found in Vinegar?
Acetic acid is found in vinegar.
What is the best way to clean old coins?
DON'T. Do not try to clean coins as this will reduce the coins value instead of increase it. You can try using a moistened 100% cotton towel and take away what you can. After that leave the coin the way it is. Don't ever use erasers, tissues, tooth picks etc... to clean coins.
Are acids found in vinegar?
The acid found in vinegar is 5-20% acetic acid(CH3COOH).
How do you clean burnt coins?
In general, the first step is to sit down and the second step is to not try to clean the coin. Anything you can do at home to clean a coin will almost always reduce or destroy its collector value. If the coin has a lot of dirt and crud on it, you can use a soft cloth and distilled water, but any chemicals or abrasives will damage the surface.
Is sulphuric acid in vinegar?
No, sulphuric acid is not found in vinegar.
Can you replace white vinegar with white wine vinegar?
No. Wine lacks the acidity found in vinegar.
What is the chemical fond in vinegaer?
the chemical that is found in vinegar in is vinegar is ethene.
What kind of bacteria is found on coins?
fungi is found on coins. it can be very harmful
