How to clean copperFebruary 10, 2013
Copper products (ranging from jewelry and finishing dishes) are used by mankind since ancient times. In some times, this alloy was equated to gold, and now copper products are not valued so highly, but at the same time they are in certain demand. Brass and brass parts look impressive and elegant, they are able to decorate any interior, but only if they look elegant.
These metals tend to tarnish and become covered with a greenish bloom, and to avoid such a situation, the copper must be cleaned. Particularly rapidly oxidized copper products when heated and in the open air. Many people notice that, for example, copper jewelry, with constant wear, quickly lose their luster and bright color, and the dishes grow cloudy and dark.
By the way, if you constantly wear a copper ornament (for example, a bracelet), then it will not oxidize very much, and sometimes the ornament may become cloudy, and then return its shine. Some people associate this with human well-being, but most likely it is a reaction to changes in atmospheric factors — humidity, pressure, temperature, etc.In view of the above, people with heart and vascular problems are even recommended to wear copper bracelets on their wrist.
Copperware is popular with many housewives, but it must be remembered that its inner surface must be tinned. In such dishes, the food warms up fully and at high speed, because copper has good thermal conductivity and heats up quickly. With the active use of copper cookware quickly loses its visual appeal, therefore, from time to time it must be cleaned. Green and dull dishes not only looks unpresentable, but also becomes toxic, so you can not use it for cooking. If this happens, and you can not clean the dishes, then it is better to leave these items as decoration items.
There are many ways to clean copper at home, with the use of available tools or special formulations.
Few are aware of a very simple method of cleaning copper products using ordinary ketchup. Tomato ketchup perfectly cleans any items from copper. It is very simple to apply it for these purposes: it is necessary to apply it on a copper surface, leave for a minute and wash it off under running warm water.After this procedure, the copper products begin to sparkle as before, and also return their original bright color. To clean copper, you can take any, even the cheapest ketchup.
The easiest way to clean copper products is to wash them in hot water with the addition of an appropriate detergent. In the water, the dishes are slightly rubbed with a soft sponge, and then rinsed under a stream of clean water.
If copper items are rather large and they cannot be removed from a wall, for example, or placed in a container with water, you can wipe their surface with half a lemon, or clean it with a brush with elastic bristles. For more brilliance of copper, you can rub the product with a mixture of vinegar and flour, and then polish it with a velvety cloth.
It so happens that the copper product is very polluted and it is difficult to clean it using the methods listed above. In this case, the copper objects are placed in a solution of vinegar with a small amount of salt, and the liquid is brought to a boil. After that, the fire is turned off, and the product is left in the solution until it cools. Then it is washed under running water and rubbed dry with a soft cloth.
Copper Coin Cleaning
Often there are questions how to clean copper coins. They are quite common among antiques and have considerable value. Return them to the presentation is quite possible, and the selected method depends on the nature of the raid.
- Yellowish bloom occurs as a result of contact with lead, and such contamination can be removed with a 9% solution of vinegar.
- The bright green patina on the copper coin is removed with a 10% citric acid solution.
- Reddish plaque is removed by lowering the coin in a 5% ammonia solution or aggressive ammonium carbonate.
Patina can build up on copper coins, and this layer gives the product a decorative, antique look. A layer of patina can be created artificially. To do this, in a liter of distilled acid, add 5 grams of potassium permanganate and 50 grams of copper sulfate. The solution is heated on a slow fire, not boiling, and coins are placed there. From time to time they must be turned over, and when the desired color appears, the process is stopped, the coins are taken out and dried. It is possible to consolidate the effect obtained by applying to the coin a mixture of benzene and alcohol mixed in equal proportions.