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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
What else can I help you with?
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.
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.
Does vinegar have chlorine?
No. Vinegar is a solution of acetic acid, which does not contain chlorine.
Can pearl melt in vinegar?
No, pearls are formed from calcium carbonate, a compound that is not affected by acetic acid found in vinegar. Pearls are not soluble in vinegar and will not melt or dissolve when exposed to it.
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).
Is sulphuric acid in vinegar?
No, sulphuric acid is not found in vinegar.
What is the chemical fond in vinegaer?
the chemical that is found in vinegar in is vinegar is ethene.
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.
Can you replace white vinegar with white wine vinegar?
No. Wine lacks the acidity found in vinegar.
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.
