Albumin masses. simple recipes

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FACTORY TECHNOLOGIES AT HOME - SIMPLE RECIPES
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Albumin masses. Simple recipes and tips

Factory technologies - simple recipes

Directory / Factory technology at home - simple recipes

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Animal blood is an excellent material for the manufacture of masses that can be easily pressed, molded and polished. However, blood has a drawback - it rots extremely quickly, which is an obstacle to its wide practical application.

To prevent rotting, a little freshly slaked lime is often added to freshly churned blood. The addition of lime gives strength due to the formation of calcareous albumin, which significantly increases the adhesive force. There are many more ways to give strength to blood, but most of them are practically inapplicable due to their high cost.

Winemaking blood masses it is advisable to place it near slaughterhouses in order to be able to process it as fresh as possible. This is also expedient for sanitary reasons, since in the production of artificial masses from blood one has to reckon with the accompanying fetid fumes. Filling substances for blood masses can be mineral or organic substances, or a mixture of both, depending on the item being made. The best results are obtained when the blood is applied immediately after the slaughter of animals, that is, before it coagulates. In this case, immediately after flowing out of the veins of the animal, it is beaten with rods, and fibrin (a protein substance that causes blood clotting) is released, while the rest of the blood remains liquid. Unfortunately, the possibility of such a rapid processing of blood is extremely difficult and unstable, and therefore hardly available for the regular production of blood masses.

In practice, free-coagulated blood, obtained by leaving the blood alone, is mostly used. With free coagulation, a clear amber-yellow blood serum collects at the top, and a blood clot containing fibrin separates at the bottom. If desired, blood clotting can be greatly slowed down by the addition of sodium sulphate or magnesium sulphate, or magnesium sulfate, or a large amount of common salt. Some practitioners recommend the use of clots alone or blood meal prepared from clots. This method is carried out as follows:

Fresh blood is allowed to stand quietly until all the blood clots have gathered together and, after a long standing, settle well. Then the blood serum is drained (can be filtered through a sieve), and the remaining blood clots are dried. The dried blood mass is pulverized and sifted through a fine wire sieve. For every 4-5 wt. hours of blood meal are added:

Bone meal 1-2 wt. hours;
Heavy spar 23 wt. h.

This mixture is mixed with a liquid adhesive solution into a viscous paste the thickness of cream, which is then pressed into molds for 10-15 minutes. You can, of course, add filler coloring agents or, in other cases, fibrous substances. The molds should be heated to 115-120 °C. After the objects are removed from the molds, they can be polished in a similar way to ebonite.

For greater confidence in the further strength of the pressed masses, alum or formaldehyde is often added to strengthen them. The amount of alum or formaldehyde added should be especially large if the fillers are 4-5 times the amount of blood meal. It should be borne in mind that the use of strengthening agents is closely dependent on both the type of fillers and the desired properties of the manufactured artificial mass. According to another method, not blood clots are used to make artificial masses, but amber-yellow blood serum that collects on top.

According to the Hagendorff method, bovine blood serum is mixed with formic acid and trioxymethylene or formaldehyde. Then heated with phenol and sodium peroxide until a solid final reaction product is obtained. If formic acid or formaldehyde and hydrogen peroxide are added to bovine blood serum, a light-colored solution is obtained, which hardens on more or less prolonged standing.

After drying, a horn-like product is obtained, which is very brittle and breaks quickly. This disadvantage can be eliminated by heating with phenol for a long time. To speed up the reaction and reduce the liquid, it is recommended to take trioxymethylene instead of formaldehyde and replace hydrogen peroxide with sodium peroxide. The use of sodium peroxide simultaneously gives (due to the formation of sodium alkali) the neutralization of formic acid. In practice, proceed as follows:

To a mixture of 100 wt. hours of bovine blood serum, 20-30 wt. including trioxymethylene and a small amount of 25% formic acid are carefully added 80-90 wt. including phenol and sodium peroxide mixed with water until the reaction is slightly alkaline, after which 10 wt. including sodium sulfide salt. This mass is heated for several hours, 3 is transferred to molds and heated again until a product of the desired hardness is obtained.

Author: Korolev V.A.

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