Our cola contains phosphoric acid which is why cola is acidic. The acid reacts with the oxide rusty coating that has covered our coins and returns them back to almost as good as new.
When the copper oxide (the pennies) and the phosphoric acid (the cola) get together in the bath, the acid reacts with the copper oxide on the pennies and dissolves it. That's why the pennies get shiny.
The vinegar and salt cleaned the coin very well as did the the Coca Cola. The coin in the vinegar was third best. Next was the orange juice and then the salt and water. The coin in the water didn't really clean it at all.
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. Leave the coin to soak for about 5 minutes or so and then check on its condition. If you feel that it needs longer, you can soak it for up to 15 minutes.
Ultrasonic Cleaners
These coins are cleaned by using distilled water with a small amount of detergent in a special vibrating container. Acid based cleaners will eat away at a coin's surface diminishing its value.
If you want to go ahead and clean corrosion off of your old coins, baking soda likely is the safest route to follow. Wet the affected coin with clean tap or distilled water, roll in baking soda, then gently scrub with a soft toothbrush.
Brilliant idea: A 600ml bottle of coke holds $1000 worth of $2 coins, so any time you're tempted to buy a coke, soft drink, or sweetened beverage, save your money and body and put the $2 in the bottle instead.
Coke and off-brand colas will quickly remove the tarnish. Just don't drink the coke afterward. Coke contains phosphoric acid that cleans the oxides. Try a variety of citrus juices to see which works best or simply let your pennies soak in lemon juice.
Cleaning old coins might seem like a good way to revitalise the appearance of a treasured item, but could in fact reduce a coin's value significantly, and should be avoided. Particularly in the case of old precious metal coins, cleaning them is most definitely not recommended!
Pour your coins into one bowl and fill with cold water until the money is well covered. In the other bowl, pour about 1 teaspoon of baking soda. Dip the toothbrush into the bowl of baking soda and scrub the coins. The baking soda should remove any dirt and grime and won't scratch the metal.
In a plastic container like those for storing your leftover foods or a small child sized bucket, add 1 cup of white vinegar and soak 4-5 coins in it. The longer you leave them to soak, the better the effect of the vinegar will be. For coins that are more than 50% corroded, it's advisable to soak them overnight.
Those tart little lemons work to remove copper oxide because they contain citric acid. Since lemon juice has the highest concentration of citric acid of any fruit, it works the best. Other juices that rank highly include lime, grapefruit, and orange juice.
The abrasive product can leave scratches or hairlines on the coin, as well as destroy the luster of the coin; in many cases a coin that has lost its luster will rarely be worth more than half its original uncleaned value. 3. When a coin is cleaned, it takes on an unnatural color.
The copper mixes with oxygen, the same gas that we breathe. This cause something called oxidation and makes the penny look dirty. Lemon juice has acid in it that removes the dirty color or oxidation and makes the penny nice and shiny again!
Don't use toothpaste – Toothpaste is extremely abrasive. It can make your coins appear shiny, but cause significant damage to the surface. Don't use ketchup – You might have learned in science class that dipping a penny in ketchup can restore their shine.
Our cola contains phosphoric acid which is why cola is acidic. The acid reacts with the oxide rusty coating that has covered our coins and returns them back to almost as good as new.
Due to its mild abrasiveness, it removes stuck-on particles and will polish most hard substances, including coins. You can clean most coins using baking soda and water alone; however, you should note that cleaning old coins may decrease their value.
There is only one coin with a truly good weight-to-value ratio and that is the $2 coin. Finding a $2 coin still means something. To illustrate this, a kilogram of $2 coins is worth $303, while a kilogram of 5c pieces, 10c pieces or 20c pieces is worth $17.60. Finding a $1 or $2 gold coin still means something.
Find a coin counting machine. While copper 1 and 2 cent coins aren't in circulation anymore, you can still deposit them into your bank account if you want to.
The $2 coin is made of 92% copper, 6% aluminium and 2% nickel. It is circular in shape, and has an interrupted milled edge.