Vintage Copper coins have a unique beauty, but only until such time as they do not darken.
Clean the coin, you can use a variety of means that will not harm metal.
If copper is darkened (often it acquires a green tint) or covered with spots, do not despair, just clean it.
You will need
- - citric
- - Flour, salt and acetic
- - Vinegar and hot water-
- - Tooth powder or pasta-
- - Cleaning fluid ukrasheniy-
- - tryapochka-
- - Toothbrush-
- - old newspaper.
Take half a lemon, in the flesh slidecoin and let her little "otmoknet". After about 15 minutes, remove it and clean the brush. Rinse in cold water and dry with a soft cloth.
Mix a little flour, and add coarse salta drop of vinegar. Good rub the coin resulting mixture, wait for a while and rinse with clean running water. Be sure to wipe dry with copper, or dark spots are formed almost immediately.
Dilute vinegar in boiling water. Approximate concentration of acetic acid should not exceed 20-25%. Add 2-3 tablespoons of table or sea salt and drop a coin into the solution. When water with vinegar has cooled, carefully remove and clean a coin with an old toothbrush. Rinse in clean water and wipe with a cloth. Be careful when working with a concentrated solution of vinegar, can poison fumes.
If you have a tooth powder, useit, and if not, suitable and conventional whitening toothpaste. Moisten a coin and rub its paste or powder, active movements clean it with a brush. Rinse and look at the result, if you are not satisfied, repeat all over again.
Cleaning fluid for jewelry, too, is capable ofreturn the original form of copper. Buy agent in the jewelry store or in the shop, drop a coin for a few minutes and carefully wipe with a clean cloth. If you fear for the integrity of the coin and are afraid to clean it yourself, contact a goldsmith. You produce professional cleaning and polishing of metal, and also inflict a special colorless coating that protects the copper from blackening.