How to clean bronze at home quickly and effectively: cleaning with natural means, using household chemicals, using food products


People learned to alloy copper with various metals to produce bronze and brass even before our era. This is precisely the reason for their oxidation and the appearance of green and dark spots on the surface, which you constantly have to fight and use different methods to clean the surface. The difference in other components of bronze and brass determines the difference in their characteristics and use in various industries.

What is brass and bronze

Brass refers to alloys of copper and zinc. Different brands of brass contain iron, nickel, manganese, and tin. Previously it was used, mainly due to its light yellow hue, for making jewelry, including fakes, which were passed off as gold items. Characteristics of brass:

  • it is ductile, therefore less durable than bronze;
  • found application in the manufacture of bimetallic elements;
  • resistant to corrosion;
  • unstable to aggressive environments (sea water).

Humanity learned to make bronze products several centuries ago, but at that moment it contained only 2 components:

  • copper;
  • tin.

Brands of bronze with this content are now called tin. In other brands, tin was replaced by aluminum, iron, beryllium, silicon, lead, which is why they are called tin-free. Bronze, due to its special strength, is used to make monuments, bells, candlesticks, and candelabra. Using the fluidity of bronze in the molten state, products of complex configurations are made from it.

Products made of bronze and brass can be distinguished by their fracture. In brass it is light yellow in color and has a fine-grained structure; in bronze it is a darker color with a coarse grain. Bronze consists of only 2 components, and brass can be either 2 components or consisting of several metals.

How to clean embossed items?

Copper products and copper coinage

can
be cleaned
with Metallin.
If you have ammonia and chalk at home, you can prepare this composition yourself. To do this, you need to take 3 parts alcohol, 1 part chalk and 6 parts water, shake well and clean
the copper items.

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Causes of plaque

The new bronze product has a characteristic golden-brown hue. But gradually this noble color fades, changing to a darker color, and in places becoming covered with a black coating. This occurs as a result of the reaction of metal ions with air molecules and the formation of oxides on the surface of the alloy. The surface film, consisting of copper oxide (CuO) and protecting bronze from further oxidation and corrosion, is called black and noble patina. They prefer not to remove it, believing that such a coating adds mystery, antiquity, and grace to the products.

Another type of patina is green, called wild and causes the destruction of antiques. Appears as a result of prolonged exposure of bronze to a damp room. Hydrogen sulfide and ammonia, which are present in humid air, contribute to the formation of emerald-colored sulfates on the surface of the product. The green coating penetrates deeper and deeper into the composition, causing destructive damage to the object. This type of plaque can be combated using various means, including home remedies.

What not to use

Despite the strength and unpretentiousness of the metal, there are contraindications when caring for objects made of bronze. It is strictly forbidden to use chemical liquids and gels used when washing dishes and plumbing fixtures. In addition to not removing all the accumulated dirt, they will also ruin the surface of the product - your favorite item may change color and become dull. Restoring the previous appearance after this is a long and more expensive matter.

thimble Puss in Boots

Cleaning methods

Over several centuries, the population has studied many methods that more or less help clean the surface of bronze products. Among the remedies that help with this problem are:

  • flour;
  • soda;
  • lemon juice;
  • table vinegar;
  • ammonia;
  • finely ground chicory;
  • solutions of sulfuric and oxalic acids;
  • sawdust;
  • school chalk.

During the cleaning process you will also need:

  • cotton rag;
  • a piece of cloth for polishing;
  • container for heating components;
  • gloves;
  • glasses.

Attention!

Bronze cannot be cleaned once and for all. After cleaning, after some time, plaque appears again, and the procedure is repeated again and again.

Plaque on bronze and means to combat it

Over thousands of years of using bronze objects and parts, people have tried many ways to clean bronze. Both compositions of mineral origin, plant origin and even food products were used. Of the dozens of methods, not all are suitable for use at home.

How to clean bronze using affordable means

For this you may find it useful:

  • lemon juice;
  • baking soda (chemical name: sodium bicarbonate);
  • plain flour;
  • vinegar 9% (not to be confused with vinegar essence);
  • ammonia (10% aqueous solution, purchased at a pharmacy);
  • aqueous solution of oxalic acid;
  • finely ground chicory;
  • aqueous solution of sulfuric acid;
  • school chalk;
  • wood sawdust.

To work you will need:

  • cotton rags;
  • cloth;
  • wipes for drying the surface;
  • stainless steel container for mixing and heating the components of the cleaning composition.

Many compounds used to clean bronze objects are chemically active and can seriously damage the skin or mucous membranes. Therefore, when working it is necessary to use personal protective equipment:

  • gloves;
  • apron;
  • glasses or clear face shield;
  • Tight clothing, shoes and hats to prevent contact of active substances with the skin or mucous membranes.

Removing plaque from bronze at home

After cleaning an item using any method, you should rinse it with water to remove any remaining composition and be sure to dry it thoroughly. Wet bronze objects become coated several times faster than dry ones.

Important! It is impossible to clean plaque on bronze once and for all. The treatment will have to be repeated periodically.

Cleaning with food products

Among the food products used to clean bronze are:

  1. Chicory. Finely ground chicory is diluted in water to a paste. Apply the mixture to a candlestick or other item and rub with a soft brush, preferably a toothbrush. It is convenient for cleaning small and embossed parts. When cleaning, press lightly, without force. The cleaning agent is washed off under running water. Then blot with napkins and dry, wiping with a cotton cloth.
  2. Peas. A few spoons of peas are placed in a saucepan with water, and a figurine, cigarette case or bronze trinket that needs cleaning is also placed there. Water covers the head of the product. Pea water is boiled for 2-3 hours and cooled. Objects are cleaned of plaque using a soft brush and washed with plenty of water. Then they are thoroughly wiped from moisture.
  3. Soda and lemon juice. A mixture of baking soda and lemon juice can save bronze from oxidation. Squeeze the juice out of 1-2 lemons and add the same amount of soda to it. The mixture is quickly mixed, applied to the surface that needs to be cleaned and left for 30 minutes. Then the residue is washed off under running water and the surface is wiped dry. This method not only helps get rid of green plaque, but also restores shine.
  4. Flour, salt and table vinegar. To clean bronze at home, use a mixture of flour and salt. They are taken in equal quantities, diluted with table vinegar to the consistency of sour cream. Apply to the surface to be cleaned, for example, on a bronze chandelier, wait about 30 minutes. The composition is washed off with plenty of water. If the product is poorly cleaned, the procedure is repeated. The dry product is polished with cloth until it shines.

Video

To learn more about the cleaning procedure, watch the following videos:

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Source

Cleaning with household chemicals

If cleaning with food products does not bring results, use household chemicals. The following are suitable for cleaning bronze at home:

  1. Ammonia. Ammonia is poured into a small container and the entire product is immersed there for 15 minutes. Then remove with tweezers, rinse thoroughly under running water and wipe dry with rags or napkins.
  2. Acetone. Use a cotton pad soaked in solvent to wipe the contaminated item, changing them as they become dirty until the cleaning material stops getting dirty. The item is washed with water, dried and polished with cloth.
  3. Oxalic acid. Used in advanced cases. Dissolve 1.5-2 tablespoons of sorrel in 2 liters of water. Objects are dipped into the solution; when the water turns dark, the objects are removed, washed with plenty of water and wiped dry with napkins.
  4. Soda Ash. Prepare a solution consisting of 1 liter of water and 20 g of soda. Dip a brush into the solution and wipe off plaque from the product. Thus, you can clean chandeliers, candlesticks, and candelabra that have a large volume. After cleaning, items are washed with water and wiped dry.

Attention!

Before working with aggressive media, you must wear goggles and gloves and, if possible, carry out work under a hood or in the open air.

How to clean stainless steel

Stainless steel household products are often found in modern kitchens: cutlery (spoons, forks, knives, pots), kitchen sink and stove

The question of their safety is relevant, and therefore we will pay close attention to methods of care and cleaning from oxides and stains

Traditional methods

Household products include:

  • Baking soda;
  • Activated carbon;
  • Table vinegar;
  • Citric acid or juice.

Apply dry substances by applying to areas with stains and leaving for 1-2 hours for soda, 15-20 minutes for activated carbon. When applied, the coal powder is moistened with a small amount of water, a reaction begins, and a slurry is formed. After treatment, items are wiped with a soft sponge and washed under running warm water.

Vinegar and citric acid are universal means that help cope with stains that appear on the surface of stainless steel. To process, take a clean flannel cloth, soak it in a little vinegar or lemon juice and rub the tarnished areas of the dishes. Upon completion of the procedure, rinse these areas with clean water and wipe dry.

Purchased chemicals

The range includes household chemicals that allow you to effectively deal with darkening and stains on the surface of stainless metal. When choosing, give preference to less aggressive chemicals to minimize harm from exposure.

The most common compositions include imported products from the brands “Amway”, “Magic Power”, “Dr. Beckmann” and others. Before use, heat the dishes to a certain temperature, apply the liquid composition and leave for the time specified in the instructions. Rinse off the product with a sponge under running water and wipe the stainless steel cookware dry.

INFORMATION!

The main advantage of household chemicals is saving time (traces of stains are removed quickly and for a long time). The disadvantage is the high cost of imported products.

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Unusual methods

People have come up with several unusual methods of combating plaque. You can clean bronze at home using sawdust. Cleaning rules:

  1. Concentrated acetic acid is poured into a glass container.
  2. Half the volume is filled with sawdust and the mass is allowed to swell.
  3. Put a glove on your hand, pick up the swollen sawdust with a cloth and rub the stained areas.
  4. Constantly change the mixture, throwing away the contaminated one and adding a new one.
  5. Wash cleaned surfaces with plenty of water and wipe dry.

You can clean bronze at home using toothpaste or powder. Small stains on antique items can be removed with an old toothbrush with toothpowder or toothpaste on it. This method is especially good for finely textured surfaces. The same composition polishes bronze items well.

General rules of care

It is not difficult to keep bronze objects clean and tidy by following these rules:

  • products should not be stored in conditions of high humidity, nor should prolonged contact with water be allowed (after washing bronze utensils under water, it is recommended to immediately dry it with a towel and then place it in a place where it will finally dry);
  • to give a glossy shine, the surface of the product is carefully rubbed only with a soft cloth (using hard fabrics can cause abrasions and scratches);
  • minor tarnishing can be eliminated using a saline solution, in which the product is dipped, and then rubbed with lemon;
  • You can quickly remove blackness with toothpaste, which is applied to a soft cloth and then rubbed onto the surface of the object (after completing the procedure, the remaining paste is washed off with water and the object is wiped dry);
  • it is possible to prevent the occurrence of contamination and protect the surface of bronze objects from green deposits using paraffin, which is rubbed over the entire surface (as a result, a protective layer is created that prevents the occurrence of the oxidation process due to the negative effects of high humidity);
  • It is recommended to store small items, in particular coins, earrings, rings, in velor bags (a bag of silica gel, which can absorb excess moisture, can provide additional protection for them).

It is recommended to carry out preventive cleaning by simply wiping the surface of bronze objects with a soft cloth (a piece of flannel or suede).

Cleaning coins using Trilon B

Ancient coins found in your own garden or during construction can be cleaned using Trilon B - used in chemical laboratories for analysis. Procedure:

  1. Found coins (coins) are first washed from dirt with soap and warm water.
  2. 1 tbsp. with a slide of Trilon B is dissolved in 200 ml of warm water.
  3. Place coins in the solution.
  4. Stir from time to time so that the coins do not stick to each other.
  5. Cloudiness of the solution indicates the beginning of cleaning from plaque.
  6. After 40 min. The coins are taken out and washed under water.
  7. If the products are poorly washed, the procedure is repeated.
  8. To prevent the coin from rusting in the future, sulfur ointment is rubbed into its surface under running warm water to form a patina that prevents oxidation.

Express cleaning

Cotton pads treated with:

  • citric acid, with its help the green patina disappears;
  • glacial acetic acid (99%), it dissolves yellow spots;
  • 5% ammonia, removes red spots;
  • acetone, destroys blackness and dirt.

Attention!

To clean and polish coins at home, GOI paste is also used, which consists of chromium oxide, fatty binders and auxiliary additives. The abrasive paste returns shine to products and removes dark spots on the surface.

Rust removal

All of these methods fight not only green plaque, but also rust of varying degrees. If the depth of the lesion is large, then sulfuric acid and chromium are used against it. Cleaning steps:

  1. Pour 1 liter of cold water into a glass or ceramic container.
  2. Add 20 g of potassium dichromate (potassium dichromate) and stir.
  3. Pour 20 ml of concentrated sulfuric acid over a glass rod and mix.
  4. Place items that need cleaning.
  5. After the rust stains are corroded by acid, the objects are removed and immersed in a solution with ammonia, keeping it in it for about 20-30 minutes.
  6. Antique items are taken out, washed with plenty of water, dried, and rubbed until shiny with cloth.

Rust is removed using pea porridge:

  1. Yellow peas are boiled to a porridge state.
  2. Allow to dry completely.
  3. Remove the dried composition with a rag.
  4. The product is washed with plenty of water and wiped dry.

Cleaning bronze with gilding

This method is used by jewelers and antique lovers. The cleaning agents they use are aggressive and require careful and attentive handling. Cleaning work should be carried out with gloves and safety glasses. Cleaning steps:

  1. Bronze is wiped with a solution of KOH or NaOH to degrease and soften plaque.
  2. Prepare a cleaning composition. Mix 30 parts water, 8 parts nitric acid and 8 parts aluminum sulfate. It is applied to the bronze with a brush and left to dry completely in the sun or near a heat source.
  3. Wash off the composition with plenty of water, wipe dry and polish.

How to clean bronze from rust at home

If items are corroded, you can return them to their original appearance using food peas.

Instructions:

Boil yellow peas. Without allowing it to cool, grind until the consistency of thick porridge. Apply the paste to the rusty areas and leave to dry. After this, wash the product in boiling water, removing any remaining rust with a brush. Wipe dry on all sides.

Peas are also used if the item is heavily infested with flies.

Instructions:

Boil yellow peas, grind them in the broth with a blender. Dip the contaminated item into the broth and boil for 2 hours. Once cooled, rinse in warm water with a soft brush, removing any remaining peas.

Attention.

To avoid damaging the glossy surface, use pastes and intensive cleaning occasionally, only in cases of severe oxidation. For regular maintenance, simply wipe the items with a damp cloth and then with a dry cloth.

Preventive measures

Cleaning the patina is not enough. To slow down the oxidation processes of bronze after cleaning:

  1. Rub with wax or paraffin until shiny. These substances leave an invisible film on the surface, which prevents the interaction of metal ions with air oxygen and water vapor.
  2. Coins are coated with sulfur ointment, which forms a black patina on the surface and prevents oxidation of the surface.
  3. Particularly valuable ones are placed separately in a piece of velor or suede and placed next to a bag of silica gel to absorb excess moisture.
  4. Regular cleaning with a flannel cloth reduces the likelihood of patina.
  5. Small products are periodically cleaned, preventing the appearance of large stains and rust, by dipping them in a soap solution consisting of grated laundry soap and water for 1-3 days, then cleaned with a soft brush. Rinse with water and wipe dry.

Having bronze objects in your home is an expensive pleasure, since they require constant care, but at the same time, the status of the owner as a connoisseur of antiquities and a person of taste increases. If treated with care and properly stored, bronze accessories will last a long time and will provide aesthetic pleasure.

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Storage of bronze jewelry.

When you remove jewelry after wearing it, dry it with a clean, soft cloth before putting it away.

This is done to remove any traces of oils from the leather as they can speed up the tarnishing of the bronze.

Since the tarnishing process is facilitated by the presence of oxygen in the air, it is advisable to store your bronze jewelry in a plastic bag to slow down the formation of patina.

Make sure you wipe them dry before storing them: leaving them in contact with air makes it easier for plaque to form.

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