How to clear a copper coin?





Surely, everyone in the house or in the apartment will have at least one copper coin, which has long been covered with oxides. As soon as you think of her and want to pick her up, you will be scared to do this because she looks awful. If you don’t intend to throw this thing away, you need to learn how to clear a copper coin, and do it as far as possible. You will find different ways to clean copper coins in this article and you can probably choose a more convenient option for you.

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How to clean a white coin from a copper coin?

The white color of the coin indicates that zinc alloys are present in the alloy. In this case, the most gentle cleaning method is cleaning with distilled water.

To do this, simply put your coin in this water for several days.

Important! It may happen that the copperfish will go green flakes. If this happens, they can be removed using a toothpick or a toothbrush with a soft brush.

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How to clean greens and blackness from a copper coin?

Wipe with a cotton swab, which previously moisten your coins in liquid ammonia, and then rinse in soapy water.

Important! Liquid ammonia reacts with copper compounds, which give the same green or black coating. As a result, a water-soluble complex is formed, which is easily washed off. Using this tool, you can easily clean a copper coin at home.

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The most effective cleaning methods

In addition to the above methods, there are other means that will help you clear the copper coin at home.

Soda solution

Fast, high-quality, and most importantly - a simple cleaning option: digestion of copper in a solution of soda:

1. Dissolve 3-5 tbsp in a liter of water. l soda.
2. Boil your coins in this solution for 30 minutes.
3. Rinse with running water and dry.

Important! The oxides that are green must leave, and the patina layer is by no means destroyed. But be careful, because caverns, as well as irregularities, may open.

Trinol B

A very good effect is obtained by cleaning copper coins in a specialized tool “Trilon B”.

Important! A large amount of insoluble metal salts is dissolved in this product, and that is why all the oxides, as well as patina, leave the surface of copper coins.

“Trinol B” does not destroy metal and provides a very high cleaning rate:

1. In the event that the coin has uniform layers of oxides, then it is cleaned to its original luster.
2. If the structure of the oxides is not uniform, then these layers may remain, and this procedure will need to be repeated.

Important! After such cleaning of a copper coin, it is imperative to carry out artificial patination.

Mechanical cleaning

The most virtuous is the mechanical cleaning of copper coins, because it requires a tremendous experience, as well as the work of a master. The original appearance of the coin is restored by removing excess layer from the surface using special tools.

Important! The procedure is carried out by real professionals under the microscope. There will be no flaws and caverns, the results are simply amazing.But such cleaning of copper coins will cost a lot, so it makes sense to order it for those copies that are of real monetary value or are of great importance to you personally.

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Hazardous cleaning methods

In addition to the universal and safe methods listed above, you can apply more aggressive measures if cleaning copper coins did not give the expected result, and you do not want to carry your products to professionals. Each of the methods below is relatively aggressive, so weigh the pros and cons before proceeding.

Acid

You need to carefully think about whether to clean coins at home in general. Often, unpeeled copper coins are much more valuable. It may happen that this cleaning will expose all the defects of the product, which were hidden under a small layer of patina and oxides, or else destroy it altogether.

A plaque removal method that uses a variety of acids can severely damage your coin. Yes, absolutely any acid quickly removes green deposits, and at the same time, absolutely all caverns, destruction, and bumps are exposed.

Electrolysis

Cleaning copper coins by electrolysis may be completely unsafe, because the work involves the use of electricity. If the coin is not studded with severe damage and obvious caverns, then this method will be incredibly effective. Otherwise, absolutely all defects are exposed, and with it, the coin will lose its value.

Important! To apply this method, you must:

• Take a power supply up to 12 V.
• Connect it to 2 wires.
• Collect a container of slightly salted water.
• Dip a coin into it and attach the wiring to the product.

As a result of applying a small electric current, patina, dirt, and oxide deposits will be removed.

Digestion in oil

A dangerous method is the digestion of coins in oil. When using this method, you must be careful, be sure to observe your safety technique:

1. Always use special protective clothing, glasses.
2. The container must be open, because oil vapors can explode unexpectedly.

Important! In this case, vegetable or medical vaseline oil is used. The boiling point of oil is more than 300 degrees Celsius, copper carbonates are completely dissolved in them.

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Cleaning coins from precious metals

If you are lucky and you are the proud owner of rare coins made of gold or silver, then we are sure you will be very interested in learning how to clean old coins at home without using the help of professional restorers.

Important! It should be noted in advance that silver and gold copies of your excellent collection require a more careful and careful attitude than copper coins. On specimens made of precious metals, oxides practically do not form, so there is no need to use brushes with hard bristles to clean them. If you act in this way, small scratches may appear on the metal.

First method

This procedure is excellent for removing dirt from absolutely any silver coin, even if it is very old. In order to clean the product you need, you need 10% ammonia solution:

1. Place your coin in this ammonia solution for approximately 1 hour.
2. Remove and rinse in warm running water.
3. Dry thoroughly.

Important! This method will help you eliminate even the strongest oxides.

Second way

Silver coins can be cleaned with a 9% solution of ordinary table vinegar. Immerse the specimens in the solution for about 3 hours, and then wash them in warm running water with soap, dry them and you can put your jewelry in the collection.

Third way

In order to clean your precious gold pieces, you must:

1. First rinse them with acetone.
2. Then immerse in a solution with citric acid for about 3-4 hours.
3. Finally, rinse with distilled water and dry your coin with a paper towel.

Important! Precious coins are in demand in special storage. This means that they must be stored separately from each other. It would be appropriate to purchase a quality album.

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Stock footage

Now you know about all the methods that you can apply to clear a copper coin. We hope they help you maintain your unrivaled and precious collection properly, as it should be.