Gilding of metals. simple recipes

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FACTORY TECHNOLOGIES AT HOME - SIMPLE RECIPES
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Gilding of metals. Simple recipes and tips

Factory technologies - simple recipes

Directory / Factory technology at home - simple recipes

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All metals can be gilded using a zinc contact, i.e. bringing them into contact with a zinc rod, the following liquids:

a) 2 parts of gold chloride, 5 parts of potassium cyanide, 50 parts of sodium sulphate, 60 parts of sodium phosphorus salt are dissolved in 1000 parts of distilled water. This liquid is used when heated.

b) 1 part of gold chloride, 3 parts of potassium cyanide, 2 parts of sodium chloride and 2 parts of sodium carbonate are dissolved in 150 parts of distilled water. This liquid is used in the cold.

On iron and steel, gilding can be obtained directly with a solution of gold chloride in ether. As the ether evaporates, a thin layer of gold forms on the surface of the metal, which acquires a metallic sheen from friction. Drawing with this solution with a pen, you can get beautiful golden drawings on iron and steel.

Gilding by rubbing with gold chloride

Gold is dissolved in aqua regia, the liquid is carefully evaporated to dryness, the residue consisting of gold chloride is dissolved in a solution of potassium cyanide and so much elutriated chalk is added to make a liquid slurry. With the help of a brush, a metal object is covered with this gruel. After a while, it is washed and the gilded layer is polished.

For gilding iron and steel, you can use a solution of gold chloride in ether. The solution is applied to the metal surface. After evaporation of the ether, the surface is rubbed with a clean cloth.

If they began to draw on iron or with a goose quill dipped in the above solution, then a golden pattern can be obtained. For zinc gilding, a paste is prepared, consisting of 20 g of gold chloride, 60 g of potassium cyanide in 100 g of water. Shaken, filtered, and a mixture of 5 g of tartar and 100 g of chalk is added to the filtrate. A mixture of chalk and cream of tartar is added until a porridge is formed, which is applied to the object with a brush or brush.

For gilding silver, one of the following solutions is used.

1st recipe:

Chlorine gold 10 g;
Potassium cyanide 30 g;
Table salt 20 g;
Soda 20 g;
Water 1,5 l.

2st recipe:

Chlorine gold 7 g;
Yellow blood salt 30 g;
Potash 30 g;
Table salt 30 g;
Water 1 l.

Liquid for gilding

Gold 10 g;
Nitric acid 25 g;
Salt 25 g;
Water 25 g;
Potash 300 g.

Dissolve gold in a mixture of hydrochloric and nitric acids, diluted with water. Potash is added to the solution and this solution is poured into an iron cauldron with 2 liters of boiling water. The liquid is boiled for 2 hours.

The objects to be gilded are calcined, then etched first with a solution of sulfuric acid, and then, for a moment, with nitric acid. They are tied with brass wire, quickly lowered into a mixture of sulfuric, nitric and hydrochloric acids, immediately removed. Rinse with water, immerse in mercury, and then in water, and after 30 seconds in a bath of gilding liquid. Washed and dried in hot sawdust. If the layer of gold should be a little thicker, the objects are touched with zinc while they are in the bath.

For coloring gilded objects, the following solution is used:

Saltpeter 60 g;
Iron vitriol 20 g;
Calcium sulphate salt 10 g.

A small amount of water is added, heated to a boil, objects are dipped into the solution, then they are dried over an open fire until they are covered with a brown film, this film is washed off and the staining is completed.

Dip gilding with zinc contact

Chlorine gold 15 g;
Carbonaceous salt 65 g;
Yellow blood salt 65 g;
Table salt 65 g;
Water 2 l.

Cleaned from dirt and grease, metal objects are lowered into a heated solution. The contact is a zinc rod.

For gilding copper and brass, the following composition is used:

Chlorine gold 2 g;
Caustic potassium 6 g;
Potassium cyanide 32 g;
Phosphoron sodium salt 10 g;
Water 2 g.

In 1,5 liters of water dissolve the sodium phosphorus salt and caustic potash. Separately, potassium cyanide and gold chloride are dissolved in 0,5 l of water, and both solutions are mixed. The solution is heated to a boil during use.

When gilding iron, steel, zinc and tin it is necessary to pre-coat them with a layer of copper.

This composition can work almost until the gold is completely used up in it and does not decompose during storage. If the composition ceases to act, a little (about 10 g) of potassium cyanide is added.

Author: Korolev V.A.

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Comments on the article:

Oleg
Potassium cyanide is not sold anywhere.

Alexander
It turns out that you need to use recipes with available ingredients.

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