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Ryan found a very dirty dime. In fact, it was so dirty the rest of us thought it was a penny! After cleaning it up, Ryan was correct - it was a dime.
Want to clean your coins?
What you will need:
Dark colored coins (up to 6)
Plate
1 teaspoon salt
2 Tablespoon vinegar
Put coins on plate, if using more than one coin, make sure they are not touching each other. Sprinkle salt on top of coins. Pour vinegar on top of the salt. After a little while they will start to look cleaner. You can also rub the coins around in the mixture.
Why and How?
The coins are not dark because they are dirty. They are dark because they are tarnished. The “dirt” is really a chemical that forms on the surface when it comes into contact with oxygen/air.
Vinegar is a chemical called an acid. Acids also react with metals. The vinegar dissolved the coating on the coins exposing the clean metal. The reaction can happen without salt but the salt speeds up the reaction.
What you will need:
Dark colored coins (up to 6)
Plate
1 teaspoon salt
2 Tablespoon vinegar
Put coins on plate, if using more than one coin, make sure they are not touching each other. Sprinkle salt on top of coins. Pour vinegar on top of the salt. After a little while they will start to look cleaner. You can also rub the coins around in the mixture.
Why and How?
The coins are not dark because they are dirty. They are dark because they are tarnished. The “dirt” is really a chemical that forms on the surface when it comes into contact with oxygen/air.
Vinegar is a chemical called an acid. Acids also react with metals. The vinegar dissolved the coating on the coins exposing the clean metal. The reaction can happen without salt but the salt speeds up the reaction.
I'll have to try this with the grandkids.
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