2024 Author: Leah Sherlock | [email protected]. Last modified: 2023-12-17 05:25
Numismatics is a fashionable hobby. Sometimes it is necessary to clean modern coins that have become dirty for one reason or another. What means to use to remove contaminants than to remove oxidation? How to clean a coin at home in a safe way and correctly identify the metal from which it is made?
Primary processing
You need to start by removing the dirt. All metals are well tolerated by conventional washing. In a container of a suitable size, dilute the soap solution, soak the coins for a few minutes, then clean them with a soft cloth or brush. Pay special attention to relief elements. Then rinse with warm clean water and polish with a dry cloth. These manipulations are not difficult to perform for an amateur collector. It is much more difficult to answer the question of how to clean a coin at home if there are signs of oxidation. It is important to correctly determine the metal from which the product is made. The easiest way is to find the available coin in the catalog andread its description or take it to an antique shop for evaluation.
How to clean an old silver coin?
Traces of oxidation from a noble metal are well removed by ordinary baking soda. The powder must be wetted to the consistency of a thick slurry and the surface of the coin should be treated with this mass. If the silver is of low quality, it is not difficult to remove the plaque on your own. Immerse the product in pure lemon juice and leave for a couple of hours. How to clean a coin at home if the silver sample is higher than 625th? There are several reliable ways. You can use ammonia, silvertauschbader or acid fixer. All these substances are used in the form of solutions. A cloth is placed at the bottom of the container, coins are laid out on it and poured with an active composition. After a while, all products must be turned over, finally rinsed with clean water. You can add shine to silver coins with tooth powder.
How to clean a coin at home if it is made of copper, zinc or iron?
Copper products, covered with a specific greenish coating, are almost impossible to return to their original form on their own. Such a formation is called a "verdigris", and only professional restorers in a laboratory are able to cope with it. If you don't know how to clean dirt and shine from an old copper coin, try soaking it in vinegar. The solution of this substance should not be stronger than 10%. Immerse the products in a container and soak in the liquid for sometime.
Coins made of iron and zinc are cleaned with hydrochloric acid. Such an operation is also not always easy to perform at home. If you still decide, be sure to use personal protective equipment and control the processing time of metals. The algorithm is simple. The coins are soaked in acid, then the plaque is removed with a stiff brush. Finally, the products are rinsed in clean water and polished with a cloth. Please note that it is customary for collectors to clean coins not from all types of pollution. Some types of plaque, on the contrary, are considered noble and it is by them that the age of an object is determined.
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