Black mordants for the horn. simple recipes

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FACTORY TECHNOLOGIES AT HOME - SIMPLE RECIPES
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Black mordants for the horn. Simple recipes and tips

Factory technologies - simple recipes

Directory / Factory technology at home - simple recipes

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As you know, horn products, such as combs, buttons, cufflinks, etc., are often dyed black to fake them for more expensive varieties.

To obtain black mordant for horn There are several ways:

1 method:

Horn products are soaked in the following solution, which is prepared in the cold: 8 parts of mercury are dissolved in 8 parts of concentrated nitric acid and 32 parts of soft water. The products are left in this dressing overnight, after which they are taken out and washed with water until the washing water is no longer acidic. From this treatment, the combs turn red, and in the case of using a more concentrated solution of mercury, they turn brown. After that, the combs are transferred to a weak solution of sulfuric liver (1 g per 1 liter of water) for 1-2 hours.

The combs, now stained black, are washed first with clean water, then with acidified vinegar, and finally with clean water. After that, they are dried and polished. With the help of such processing, horn products are obtained that, according to connoisseurs, are not inferior to products made from buffalo horn. Polishing painted objects should be done carefully, as the mordant does not penetrate deep enough into the horn.

2 method:

Horn products are placed overnight in a cold aqueous solution of lead nitrate (in a ratio of 1: 4), after which they are placed for half an hour in a 3% hydrochloric acid solution and, finally, washed with water. If the color is uneven, then the operation is repeated again. This excellent mordant significantly raises the value of horn products.

Author: Korolev V.A.

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