Anyone who bought a silver jewelry or articles knows that over time this material becomes more dull, sometimes even black. There is a lot of silver purification techniques, one of them - silver cleaning with hydrogen peroxide. On the advantages and disadvantages of this method we try to understand the article.
Why is black silver
All silver products contain impurities in the composition, most often copper. It is known that copper is very quickly and easily oxidized. And the most powerful oxidant in everyday life - secretions of the sweat glands. When equipped with decorations of silver bracelet, ring or chain may turn black within a few weeks. This time depends on the sample, the amount of impurities and of personal hygiene. Hydrogen sulfide and sulfur compounds with other substances also accelerate the process of darkening of silver, so that moving to the area with high content of the above chemical elements can cause deterioration of silver jewelery.
The main rule wearing silver - avoid hitting ornaments in water and stored in places that are inaccessible to water and dampness. To products longer pleased with its appearance, it is best to buy quality items with a minimum amount of impurities.
Methods for cleaning silver
Clean Is Silver hydrogen peroxide? Hydrogen peroxide - strong drug that can remove contaminants from the surface of the object permanently. However, the presence of impurities in the product having oxidizing properties, can obtain the opposite effect.
Clean silver with hydrogen peroxide - is one of the easiest ways that you can easily try at home. But some products even more secure sufficient cleaning soda. For such a procedure is applied to a toothbrush moistened baking soda and carefully purified by darkened portions.
To clean the silver ammonia must be a little more training. The previously prepared dishes is poured into water and ammonia in a ratio of 10 to 1 (10 parts of water, 1 part ammonia). Then, this solution was added silver products. Things need to be soaked for half an hour or longer, depending on the degree of darkening of silver. After removing the decoration should be wiped with a soft sponge for washing dishes and dry wipes or towels.
Cleaning silver is also carried out in professional salons. Finding tarnished view of favorite ornaments, you can give them to the hands of the master, who with the help special tools and skills to cleanse the silver and the processed products materials slows further blackening.
Hydrogen peroxide: an overview
Hydrogen peroxide - the drug, which has antiseptic and disinfectant properties. The use in medicine of hydrogen peroxide due to the ability of the active substance release oxygen in contact with the contaminated surface. Active oxygen oxidizes compound, a large amount of foam, a pathologic nidus both effectively cleared from infectious agents and in the elements of tissue destruction.
Hydrogen peroxide is used:
- in the home - Hair lightening, tooth whitening tissue cleaning stains, wash tanks, the cleaning of silver;
- in industry, in the textile industries, paper making process, propellant;
- in chemical production - as a catalyst and a strong oxidizing agent;
- in medicine - to cleanse purulent wounds, stopping bleedings small capillary, washings of cavities, douches, irrigations and rinses;
- in ENT practice - to dissolve the plugs in your ears;
- in catering - to current disinfecting surfaces, instruments, equipments, slabs.
Hydrogen peroxide is produced by the Russian chemist plants as a solution in vials with a concentration of active substance 3 percent. For industrial production companies supply the hydrogen peroxide in a large amount of cans. Can be purchased in pharmacies packing volume of 100 ml.
The action of hydrogen peroxide on the blackened silver
Pure silver with hydrogen peroxide - a popular and effective method, though controversial. The thing is that action of hydrogen peroxide to silver item depends on the composition and amount of impurities. The main pharmacological property of the medicine - oxidation, the formation of free oxygen, which in medical practice are mechanically cleans wounds, ulcers and abscesses. If a part of jewelry contains materials from which hydrogen peroxide can restore the silver, the product will be cleared from the blackness.
The presence of certain compounds in the composition of the metal can cause the opposite effect in the treatment with hydrogen peroxide. Decorating can completely turn black, and clear it will be very difficult. If you are afraid to spoil the silver things, and are not sure of their composition, it is recommended to clean the stains turn to experienced masters or choose national method, eg using ammonia, soda or dental paste. These methods are not accompanied by the formation of atomic oxygen.
How to clean silver with hydrogen peroxide
Hydrogen peroxide to clean the silver should be after the preliminary preparations. Decoration or other product must be washed in warm water using a liquid soap and a soft sponge for washing dishes. This allows you to remove grease, stains, perspiration and other contaminants. In no case be soaked in boiling water thing or hot water, it is necessary to use solutions at room temperature.
After purification by silver stain and visible fat dressing was placed in a basin with water and three percent hydrogen peroxide. A few minutes later the product is removed and rinsed with clean water. After the procedure, silver wipe dry with a towel.
conclusion
hydrogen peroxide can clean silver if precisely known composition of the product and the presence of impurities, since various components may enhance the reaction when in contact with a medicament or towards oxidation or towards recovery. The result is a pure decoration or without dark spots or blackened rotten thing to be able to recover only the master. You should also check the authenticity of jewelry before attempting to clean the thing in this way. Plated products with many alloys after reaction with hydrogen peroxide definitively spoiled.
sources:
Vidal: https://www.vidal.ru/drugs/hydrogen_peroxide__36359
GRLS: https://grls.rosminzdrav.ru/Grls_View_v2.aspx? routingGuid = 598c3f69-91b2-45a1-8970-19bdc77500f8 & t =
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