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Soak dirtier coins in a cup of white vinegar The acid in vinegar is great at dissolving stubborn stains or corrosion. I ended up with results showing that the baking soda solution scored a 3 the dish soap with a 3 the soda with a 4 the bleach with a 1 water with a 2 and lemon juice.
Soak the coins in vinegar for around a minute.
What cleans coins the best. Should you need to touch the surface do so with a soft cotton glove or ensure that your hands clean and oil-free. Hold the coin by the edge and agitate gently. Hold your coins over a soft towel in case you drop it.
This cleaner contains oxalic acid that cleans gunk from coins and brings out their original shine. Always handle your coins the edges between the thumb and forefinger and do not touch the surface. Merethe Svarstad EegGetty Images This method is the best way to clean your pennies and it will produce a very bright orangey-copper color on your pennies.
Using olive oil to clean your coins is a simple and inexpensive technique. Hold the coins by their edges. I also predict that Cola would do the worst since it kills our teeth and is not very good at cleaning things.
First put the coins back into the same mixture as the one you used in the first experiment. A Acid is a material that can release a proton or hydrogen ion H. Swish the coin around in the distilled water to remove the chlorine residue and other contaminants that are found in tap water.
Place one of each type of coin into each solution. A Base is a material that can donate a hydroxide ion OH-. This type of cleaner is also the best way to polish brass and clean other metal surfaces.
Digital Ultrasonic Cleaner This is an electric ultrasonic device that is supposed to clean your coins and jewelry or whatever you want by using warm tap water and ultrasonic waves. Fill four cups each one quarter full with each of the six cleaning solutions suggested 4 with lemon juice 4 with orange juice 4 with cola 4 with water 4 with baking soda paste and 4 with dish liquid. For my coin experiment I predict that Lemon Juice would do the best because of its very strong acids.
To use this technique youll need a plastic container and some olive oil. I based each solution on a scale of 1-5 1 being the worst and 5 the best. If your kids want a more hands-on approach to coin cleaning add a small amount of water to a tablespoon of baking soda to form a paste.
Cleaning Coins with Olive Oil. Distilled water is best as most water is now treated with fluoride and this can cause different chemical reaction with some coins as many coins have several metals within them when they are minted. Research Procedure Hypothesis baking soda paste will clean the coins the best.
My observations concluded that the lemon juice was the best cleaning solution for cleaning coins. You will not need to clean your coins repeatedly if you know the best way to clean pennies and how to preserve them properly. The vinegar salt mixture and the ketchup will have come out as the clear winners.
The olive oil can penetrate the dirt on the surface loosening it from the currency. If the layer of brown oxidation doesnt budge return the coins to the dish and let them soak for five more minutes. This would clean the tarnish off them since acids are very good at dissolving metals.
At this point you should no longer touch the coin on its faces. Every liquid you see will probably have either acidic or basic traits. However if youre going to use this device I would recommend using a copper cleaning solution instead of warm tap water for better results.
Rinse under hot running water After soaking make sure to rinse off any soap residue or vinegar with hot or warm running water. Simply place one coin in a glass or tub and pour coke over the top enough so that it is fully submerged in the liquid. Carefully record each coins condition prior to placing it into its cup.
You can soak the coins for at least 30 minutes a few hours or even overnight. Most of the liquids except the water should have somewhat cleaned the coin. There are a variety of suggested ways when it comes to cleaning coins and cleaning coins with coke is the internets number one method of choice.
Let your kids use a toothbrush to apply the paste to each coin scrubbing gently. So for the 2nd stage of this experiment you will work on these two materials alone. If youd prefer to use a commercial metal cleaner to clean coins try Bar Keepers Friend.
Touch it only by the coins edge when using your bare fingers. Rinse in running warm tap water and fully rinse the coins. It does this by using the low levels of acids that are contained naturally in vinegar and lemon juice to.
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