You should never try to clean coins at home using anything stronger than distilled water. Colas contain phosphoric acid that has damaged the surface and destroyed any collector value they may have had.
It's too late to undo the damage done. The best you can hope for is that they're common dates so you didn't lose much. The good news is that they can still be sold for their metal value, about 6 to 8 times face value as of 11/2008.
To clean silver dollars, you can gently wipe them with a soft, lint-free cloth. Avoid using harsh chemicals or abrasive materials, as these can damage the coin's surface and reduce its value. If the coins are heavily tarnished, consider consulting a professional coin cleaner.
put in a glass of cheap coca cola and leave over night
Tarnished coins undergo a chemical reaction with substances like sulfur and oxygen in the air, creating a layer of tarnish on the surface. This tarnish is a form of corrosion that can dull and discolor the coin. To clean tarnished coins, methods such as using a mild soap and water solution, rubbing with a cloth, or using specific coin cleaning products can be effective in restoring their appearance.
To clean chlorine residue from coins, try soaking the coins in a mixture of warm water and mild dish soap. Gently scrub the coins with a soft-bristled brush and rinse thoroughly with clean water. Avoid harsh chemicals or abrasive cleaners, as they can damage the coins.
No, you do not clean coins. Cleaning coins will only damage their value. If you feel you must clean a coin, take it to a coin dealer and see what he recommends to clean the coin, however, they will recommend you not to clean it. Coins potentially worth hundreds of dollars have been brought down to selling them for scrap because people have cleaned them! Do not clean coins!
To clean 1895 silver dollars properly, it is generally recommended to gently wipe them with a soft, lint-free cloth to remove light dirt and fingerprints. Avoid using harsh chemicals or abrasive materials, as these can damage the coin's surface and reduce its value to collectors. If the coin is heavily tarnished or dirty, consider seeking professional advice from a coin expert or numismatist before attempting to clean it.
The answer is you don't clean your coins. Cleaning coins is detrimental to the value. Unless they are caked in dirt don't clean them, if they are caked in dirt, clean with soapy water and a towel or sponge and dry.
the best way to clean copper or silver coins and jewelry is ashes
Encapsulated coins have been placed in small plastic containers to keep them from getting tarnished.
Silver coins tarnish when they react with sulfur compounds in the air, forming a layer of silver sulfide on the surface. This reaction occurs over time and exposure to air, causing the coin to develop a dark, tarnished appearance.
Most collectors want unpolished/uncleaned coins.
No. Cleaning a coin damages the coin. Never, ever, ever, clean a coin.Silver dollars and half dollars are often collected for more than their silver value, cleaning them will only ruin their collectable value. You will never add value to a coin by cleaning it (the exception being coins dug out of the ground) and can possibly shave tens, hundreds or even thousands of dollars off the value of your coin by cleaning it.