SK9793Y1 - Bath additive - Google Patents

Abstract

Described are bath additives based on magnesium sulfate and one of the potassium carbonates containing urea phosphate - CO(NH2)2.H3PO4. Additives for the bath are intended for treatment of water intended for a relaxing and/or rehabilitation bath.

Description

The field of technology

The solution concerns bath additives, which are intended to improve the properties of water used for relaxation and/or rehabilitation baths.

Current state of the art

In order to achieve a higher effect of the procedure, the water intended for a relaxing or rehabilitative therapeutic bath is often enriched with various additives. Various sources of mineral substances, plants or plant extracts, oils, fragrances of natural or synthetic origin, foaming agents, water hardness modifiers, etc. are either added to the water.

In order to increase the attractiveness of the bath, the addition of the listed additives can be combined with the release of some substance in its gaseous state.

Of the mineral additives, the use of sea salt, sulfate and magnesium chloride and various forms of sodium and potassium chlorides is relatively widespread. Plants are usually used in dry form or in the form of aqueous macerates. In order to treat the skin, the addition of vegetable oils is used. In order to achieve special aromatherapeutic, deodorizing and disinfecting effects, as well as with the aim of increasing overall comfort, the bath water is also usually enriched with plant essential oils. The use of foaming agents together with fragrances is also quite common.

Abroad and also in our country, the use of bath additives in their shaped, usually spherical form has become widespread, when used, a combined effect is usually achieved (source of mineral substance, fragrance, color of water, release of gaseous component). As a source of mineral substances, these shaped bath additives practically always contain at least one of the following substances: sea salt, sodium chloride, potassium chloride, magnesium chloride, or so-called bitter salt, also known as epson salt Chemically, it is magnesium sulfate, MgSO4, which is present in the form of some hydrate or in anhydrous - calcined form as an anhydride.

These shaped bath additives release carbon dioxide gas upon contact with water, thus achieving the desired "bubble effect" in the bath. The release of carbon dioxide is ensured by the presence of hydrogen carbonate, the so-called of sodium bicarbonate - NaHCO3 in a mixture with some crystalline carboxylic acid. As a source of sodium bicarbonate, the so-called baking soda and the acid function is practically always performed by 2-hydroxy-propane-1,2,3-tricarboxylic acid, the so-called citric acid, which is usually used in its crystalline form - as monohydrate C3H5O.(COOH)3.H2O. To ensure the shape stability of the mixtures, the addition of one of the polysaccharides - corn, potato or grain starch - is practically always used, which is applied to the moistened powder mixture.

A bath prepared using additives should also have a beneficial effect on tired - sore muscles and against cramps. Also for this reason, it is therefore necessary to ensure that, in addition to the aromatic and various effect-inducing substances, they are mainly a source of important, physiologically acting mineral substances acceptable through the skin.

It was found that the relaxing and healing effect of the bath can be increased by using additives that contain instead of the commonly used sodium hydrogen carbonate - NaHCO3, the so-called baking soda, one of the potassium carbonates and at least one of the vegetable oils, the melting point of which is higher than 20 °C and lower than 45 °C. Potassium carbonates are a source of a physiologically very important element - potassium. The presence of potassium carbonates, which can be hydrogen carbonate, the so-called acid potassium carbonate, KHCO ₃ , as well as dipotassium carbonate, K ₂ CO ₃ , also known under the trivial name of potash, or their mixtures, enables the release of carbon dioxide gas (CO2) in the presence of acid-reactive substances and water. As an acid-reactive component for the formation of gaseous CO2, one of the carboxylic acids is usually used, which under normal conditions are in a solid - crystalline form. In addition to the most commonly used citric acid, it is also possible to consider using a whole range of similar organic acids, of which, for example, malic acid, tartaric acid, ascorbic acid and the like can be mentioned. In addition to potassium, it is very important that bath ingredients also contain skin-acceptable magnesium. It is generally known that magnesium is among the basic essential biogenic elements from the point of view of living organisms (plants and animals). Magnesium cation is the second (after potassium) most widespread cation in the intracellular fluids of the human body. Magnesium in cells directly conditions the activity of about 300 important enzymes.

The essence of the technical solution

Although the already mentioned solutions enable a significant improvement in the quality of the prepared and commercially offered ones

SK 9793 Υ1 bath additives, it has now been found that their relaxing and healing action can be significantly increased. It is characteristic for bath additives according to this solution that they contain urea phosphate CO(NH2)2.H ₃ PO4. Urea (H2NCONH2), due to the chemical structure of the molecule, is capable of forming addition compounds with a whole range of inorganic and organic substances (Sulajmankulov, K., Soedinenija carbamide s neorganičeskimi soljami, Izd. Ilim, Frunze 1971). Professional literature states that from the ternary system: H ₃ PO ₄ CO(NH ₂ ) ₂ - H ₂ O crystallizes the adduct type: CO(NH ₂ )2.H ₃ PO ₄ (Matignon, S. -Dodge, D.: Compte rendus , 194,1289, 1932, Bull. Soc. Chim. France, 1, 1114, 1934, Blidin, VP et al.: Ž. prik. chim., 30, 646, 649, 1957). This equimolar addition salt: CO(NH ₂ )2-H ₃ PO4 (CAS No. 4401-74-5, EC No. 225-464-3), which is known by its unique chemical name as uronium trihydrogenphosphate, but usually only as urea phosphate, or as urea phosphate, is currently also used in practice.

This white crystalline salt, an acidic chemical reaction, theoretically contains 17.72% amide nitrogen (as N) and 19.60% phosphorus (as P). Its melting point is approximately 117 °C, while at a higher temperature it undergoes thermal decomposition leading to molecular dehydration of the phosphate anion. Currently, urea phosphate is industrially produced and used primarily as a nitrogen-phosphorus fertilizer (17-44-0), also as a special catalyst or as an intermediate in the production of highly concentrated liquid fertilizers based on condensed phosphates (15 to 17% N and 28 to 29 % P2O5). Especially in connection with the production of liquid fertilizers, the chemical reaction between urea and phosphoric acid is often used as a method of cleaning the so-called extraction acid, obtained by the decomposition of phosphates by the action of mineral acids (especially by the action of sulfuric acid).

In the presence of water, the hydrolytic decomposition of urea phosphate occurs, releasing the trihydrogen phosphoric acid contained in it, H ₃ PO ₄ . The reaction of phosphoric acid with one of the potassium carbonates (K ₂ CO ₃ or KHCO ₃ ) in the presence of water releases carbon dioxide gas - CO ₂ , which creates the desired "bubble effect".

Phosphorus is an important biogenic element for mammals and therefore also for the human body. The human body contains about 1% by weight of phosphorus (approx. 700 g). It is most abundant (about 90%) in bones and teeth, where it is in the form of carbonate apatite - 3 Ca ₃ (PO ₄ )2.CaCO ₃ and hydroxyapatite - 3 Ca ₃ (PO4)2.Ca(OH) ₂ . The concentration of phosphorus in the body fluids of mammals is an important indicator of their health status. Organic compounds of organisms that contain phosphorus include phospholipids, phosphoproteins and nucleic acids. Through enzymes, phosphorus participates in metabolic reactions. Its compounds significantly affect the use and accumulation of energy from metabolic processes. By being present in nucleic acids, it participates in the transmission of genetic information. Many physical and chemical properties of body fluids depend on its presence in the body. It also affects the acid-base balance, but also the exchange of several mineral salts (Ca, Mg, etc.) and also vitamins.

In groundwater, phosphorus occurs only in very small concentrations, because phosphates are chemically bound in soils and are also physically captured in them.

For the reasons already mentioned, phosphorus is also a common part of nutritional supplements, most often as one of several substances.

Urea (urea) - CO(NH ₂ )2 is now considered an almost miracle cure for dry skin, so there are many creams, lotions and other skin care products with this ingredient. Its positive effect has been studied for a long time and it is a natural part of the skin, which is often not produced in sufficient quantities. Urea is a well-known moisturizing and exfoliating substance that is produced naturally as a result of the metabolic activity of the organism at the cellular level. It is a natural part of the skin, where it participates in maintaining its hydration as a source of natural moisturizing factor. Urea has been used safely for centuries to maintain healthy skin and treat a variety of ailments. Many clinical studies have confirmed its positive effect in skin care. It is a significant factor involved in maintaining the hydration of the skin, which is why it is widely used in the cosmetics industry. In lower concentrations, it helps to retain water in the outer layers of the skin and to maintain the required hydration of the skin. High concentrations (over 20%) can already have a keratoplasty (softening effect on dead skin cells) or even a keratolytic (direct decomposition of dead cells - preparations suitable for application to places with extremely thickened skin - elbows, heels). For this reason, it is appropriate to supply this precious material from the outside, thus preventing the skin from drying out, or she was cured.

From the above, it can be seen that bath additives in the sense of a solution are the source of several important and physiologically important components, the presence of which in the water used for relaxation-rehabilitation baths has its own justification.

It is of course expedient if the bath additives according to the solution are also a source of other biologically active substances, such as essential oils - vegetable oils, suitable vegetable butters, trace elements - microelements (Melicherčík, M. - Melicherčíková, D.: Bioinorganic chemistry - chemical elements and human organism, Nature

SK 9793 Υ1

- Bratislava 1997), vitamins, some collagen or chitin polysaccharides and the like.

As it has already been practically verified, the following vegetable butters are particularly suitable for the preparation of the bath additives in question according to the solution: murumuru butter, shea butter, cocoa butter, illipe butter, kokum butter, ucuuba butter, sal butter and capuacu butter.

Of the bioinorganic elements, it is suitable if the bath additive in the sense of the solution contains at least some of the following: sulfur, copper, zinc, boron, selenium, iodine, iron, manganese and molybdenum.

In addition to sulfur (S), magnesium (Mg), potassium (K) and phosphorus (P), which are essential for the human body, i.e. necessary for life, and their daily requirement is higher than 100 mg (therefore they belong to the so-called macroelements, or electrolytes), for proper function, the body also needs elements whose daily requirement is less than 100 mg, which is why they are referred to as trace elements - microelements.

The importance of sulfur (S) in living organisms is generally known. It is part of every cell and is found in amino acids (methionine, cysteine, cystine). The ancient Greeks and Romans already knew and actually used the disinfecting effect of sulfur and its compounds. The beneficial effect of sulfur is also known when using sulfur springs, especially in connection with dermatological treatment.

Perhaps the most important biochemical function of copper (Cu) is its participation in the formation of red blood pigment - hemoglobin. Its deficiency in the body causes pathological changes - it limits the transport of iron ions, which causes anemia, even when there is enough iron in the body.

The importance of zinc (Zn) for the human body can be judged by the number of enzymes in which it is found, there are more than 100 of them, and at the same time it acts as a cofactor for about 200 other enzymes. Zinc is, for example, part of the erythrocyte carbonic anhydrase enzyme during the exchange of carbon dioxide CO ₂ and oxygen O ₂ , but also carboxypeptidases released by the pancreas, which initiate the breakdown of proteins from food into amino acids.

Boron (B) is an important element for plants - with its lack, plants do not flower and therefore do not produce fruit. However, boron is a biogenic element even for warm-blooded animals. The therapeutic use of boron compounds was introduced by Lister (in 1879). Its action is based on an antiseptic, disinfectant, antifungal and antiphlogistic effect mainly on the skin and mucous membranes.

Until recently, selenium (Se) was considered an exclusively toxic element. Only the last decades of research show that there is no health without selenium. Today, selenium is increasingly referred to as the “immunity and fertility mineral. Selenium also supports the activity of the heart and can be beneficial in oncological treatment. According to scientists from the British University of Surrey in Guildford, it would be beneficial to provide people with a daily intake of this microelement up to 100 pg. According to an extensive study of the Food Research Institute in Bratislava (Mosnáčková, J. et al.), the Slovak Republic, as well as the entire European region, is among the localities with a low concentration of selenium in the soil, which is subsequently reflected in its low content in food, and thus also in human organism. The study draws attention to the need to ensure the addition of this element to human and animal nutrition.

Iodine (I) is primarily important as a component of the hormone thyroxine. With a low intake of iodine in the body, disorders of the thyroid gland function (hypothyroidism) occur. Iodine deficiency can also cause mental disorders and disorders of development and growth.

Iron (Fe) is part of redox dyes, especially hemoglobin, which ensures the transport of oxygen from the lungs to the whole body. It supports the normal development of the fetus and children, ensures the normal functioning of the body, especially the brain, muscles, thyroid gland and organs of the immune system, suppresses fatigue and prevents anemia.

Manganese (Mn) is present in all animal tissues, but especially in the liver, skin, bones and muscles. It is part of only a few enzymes, but it activates many more. It is necessary for the normal function of the central nervous system. Manganese is co-responsible for the proper development of cells and, along with iron and copper, affects the proper course of blood formation, where it plays an important role in the formation of heme. It participates in the metabolism of fats, carbohydrates, lipids, cholesterol and glucose, as well as in the synthesis of proteins and nucleic acids. Manganese affects the body's immune system - it helps increase the body's resistance to infections. Manganese is a “protector against diabetes. It has been shown that, for example, a breastfeeding mother with a manganese deficiency can very likely expect a diabetic child.

Molybdenum (Mo) has been included as an essential element for humans and not only for plants only in recent years. It participates in many redox reactions in the organism on the transfer of electrons. It is important for various metabolic enzymes. Molybdenum is related to the metabolism of copper, which acts as its antagonist, and also affects the metabolism of iron. Together with selenium, according to the latest research results, it probably supports female fertility.

According to professional literature (Burkhardtová, D.: Laboratory values, NOXI, Bratislava, 2007), the daily need for the most important trace elements is as follows:

iron (Fe) 10 - 15 mg, zinc (Zn) 7-10 mg, copper (Cu) 1.0 - 1.5 mg,

SK 9793 Υ1 manganese (Μη) 2-5 mg, iodine (I) 180-200 pg, selenium (Se) 30-70 pg and molybdenum (Mo) 50-100 pg.

Their appropriate chemical compounds can be used as sources of trace bioinorganic elements in the preparation of bath additives in the sense of this solution. In order to create prerequisites for their effectiveness, it is necessary to choose compounds with the highest possible solubility in water. For most trace elements, it is expedient to use their sulfate form or some of the complexes (citrates, chelates, etc.).

Especially if the bath is to be used for treatment, or rehabilitation of various skin diseases, it is advisable to enrich the prepared bath additive with an additional amount of sulfur. It has been proven to add sulfur in its elemental, finely ground (colloidal) form, well dispersible in water. As a source of sulfur in its colloidal form, it is also possible to use one of the sulfates - thiosulfates in the subject system. Sulphates in an acidic environment, in the presence of water, are subject to gradual oxidation, during which elemental sulfur is excreted in colloidal form. In this context, it is particularly appropriate to use crystalline potassium sulfate (thiosulfate), K2S2O3.

Vitamins are vital substances that must be supplied to the body mainly through food, because not all vitamins can be created in the human body. A distinction is made between water-soluble vitamins (vitamin BI, B6, B12, C, H and folic acid) and fat-soluble vitamins (vitamins A, D, E and K).

In order to achieve some special properties and functions in the bath additives according to the solution, it is also expedient if the addition of one of the collagen or chitin polysaccharides is also taken into account during their preparation. Some hydrolyzates of collagen (gelatin) and products obtained by deacetylation of chitin (chitosan) are suitable.

In order to create the prerequisites for achieving an optimal "bubble effect" and simple handling and dosing of the bath additive, it is advisable that the originally powdery-crystalline mixture of components forming its essence be modified into a compacted - shaped form. The conducted tests proved that the required processing of the mixture into its uniform solid form can be achieved by a suitable choice of the components used and by observing the conditions of their processing.

The advantage of bath additives in the sense of the solution is also the fact that the water after the bath does not contain sodium cations or chlorides, while urea - amide nitrogen, water-soluble phosphorus and potassium in non-chloride form enables its further effective use for watering cultivated plants. The water after the bath can be used for effective fertilizing of root, fruit or leafy vegetables, but also lawns and decorative or fruit trees. As a full-fledged watering fertilizer, bath water treated in this way will provide plants with all basic nutrients in their appropriate proportions, as well as sulfur, magnesium and possibly other biogenic trace elements. In addition, the weakly acidic chemical reaction of such water positively affects the availability of plant nutrients contained in the soil or the growing substrate used. The above can be advantageously used, for example, in outdoor relaxation baths (bathtubs, children's pools, whirlpools, etc.).

Carboxylic acids, usually used in the preparation of bath additives, can increase the corrosion aggressiveness of water (for example, citric acid is commonly used as an effective complexing agent), while the phosphorus component contained in the preparations according to the solution, present in the form of orthophosphate anions, has an inhibitory - passivating effect on metal components with which the bath water comes into direct contact.

Implementation examples

The given examples clarify and document the solution in question, but in no way limit the claims for its protection.

Example 1

During the laboratory preparation of urea phosphate - CO(NH ₂ ).H ₃ PO4, intended for the preparation of samples of bath additives according to the solution, the procedure was followed by weighing the following into a glass beaker placed in a water bath:

914.95 g of trihydrogenphosphoric acid, containing min. 85% H ₃ PO ₄ a

479.8 g of added urea, CO(NH ₂ )2, containing min. 46.2 wt. % N.

The mixture was heated to a temperature of 55 to 60°C for about 100 minutes with constant stirring. Then the beaker with the reaction mixture was left to crystallize freely in the refrigerator (approx. + 10 °C) until the next day.

After about twenty hours, the reaction mixture solidified and formed a practically homogeneous crystalline layer. 1,376 g of wet product containing approximately 9.8% water was obtained by the above-mentioned method. In order to reduce the water content, the product was partially dried on filter paper in a laboratory oven at a temperature of approximately 80 °C.

The crystalline product prepared in this way contained approximately 97.6% of the active substance - crystalline urea phosphate.

Example 2

During the laboratory verification of the preparation of the shaped bath additive according to the solution, 37 g of technical potassium carbonate - potash, K2CO3, was weighed into a plastic container, in which a weight loss of 14.38% was determined by drying at 105 °C. 66 g of technical calcined magnesium sulfate, MgSO4, which contained min. 33% MgO, and the mixture was thoroughly mixed. Finally, 100 g of crystalline urea phosphate - CO(NH2).H3PO4, prepared according to example 1, was added to the mixture.

The mixture was stirred until the formation of clumps was observed in it (approx. 15-20 minutes). Silicone molds were used to shape the mixture prepared in this way, whereby the prepared mixture was poured into the molds and then the contents of the mold were compacted with slight pressure using a spoon. The filled molds were allowed to set freely at room temperature until the next day. The solidified shaped preparation - bath additive according to the solution finally separated from the molds.

In order to check the function of the prepared samples, the procedure was that 8,002 g of tap water with a temperature of 22 °C, characterized by a hardness of 12 °N, was placed in a plastic bucket. Then a prepared shaped sample of the bath additive (94 g) was placed in a bucket of water. Almost immediately after contact with water, a relatively intense evolution of gas was observed - bubbles of released carbon dioxide, CO2. The complete dissolution of the sample occurred after about a quarter of an hour, thus obtaining a clear, colorless solution with an acidic reaction (pH: 3.1).

Example 3

In the interests of the laboratory preparation of a shaped bath additive in the sense of a solution, 162 g of technical potassium carbonate, K2CO3, was weighed into a plastic container, in which a weight loss of 14.38% was determined by drying at 105 °C. 16.8 g of citrus essential oil, obtained by steam distillation from the peels of oranges, tangerines and lemons, was added. The obtained mushy mixture was thoroughly mixed, and then 290 g of technical anhydrous - calcined magnesium sulfate, MgSO ₄ , which contained min. 33% MgO. After the mixture was homogenized, 0.35 g of powdered food color - "green brilliant dark (E102, E133)" was added and the mixture was mixed well again. Finally, 441 g of crystalline urea phosphate CO(NH2).H3PO4, prepared according to Example 1, was added. The character of the constantly thoroughly stirred mixture gradually changed with the addition of phosphate. After about 10 minutes, the mixture took on a slightly moistened character and clumps began to form during mixing, so it was possible to start dispensing it into the silicone molds.

The molds were first almost completely filled with the prepared mixture. After that, pieces of solidified cocoa butter (a: 1.6 g) were inserted into the moistened mixture in the molds using tweezers, which were covered with the moistened mixture and then the contents of the mold were compacted with slight pressure. Cocoa butter was pre-moulded into solidified 'castings' using a silicone mould. Subsequently, another quantity of the wetted mixture was gradually added and continued with its compaction until the molds were completely filled. The mixture was allowed to set freely in the molds at room temperature. After about 24 hours, the shaped preparation - bath additive, enriched with citrus oil and cocoa butter according to the solution, was separated from the molds.

Example 4

In the preparation of the shaped bath additive (eight pieces) according to the solution, the procedure was similar to that in example 3, while the following raw materials were used:

230 g of pure anhydrous potassium bicarbonate, KHCO3, g of lavender essential oil obtained by distillation of lavender flowers and stems,

290 g technical anhydrous - calcined magnesium sulfate (33% MgO),

0.5 g of powdered blue food coloring ribacid green G,

440 g of crystalline urea phosphate - CO(NH2).H3PO4, prepared according to the procedure described in example 1 and x approx. 1.6 g of shaped shea butter in a solid state.

Example 5

For the purpose of preparing a powder concentrate of trace biogenic elements, intended for the preparation of a bath additive according to the solution, the following were homogenized:

50.71 g of ferrous sulfate heptahydrate, FeSO4.7H2O, containing min. 19% Fe,

50.72 g of zinc sulfate monohydrate, ZnSO4.H2O, containing min. 35% Zn,

3.85 g of copper sulfate pentahydrate, CuSO4.5H2O, containing min. 25% Cu,

SK 9793 Υ1

8.43 g of manganese sulfate monohydrate, MnSO4.H ₂ O, containing min. 32% Mn,

17.92 g of trihydrogen boric acid, H3BO3, which contained min. 17.2% B,

0.19 g of crystalline potassium iodide, Kl, which contained min. 75% I,

0.07 g of crystalline selenic acid, H ₂ SeO ₃ , which contained min. 60% Se a

0.11 g of ammonium molybdate tetrahydrate, (NH ₄ ) ₆ Mo7O24.4H ₂ O, containing min. 53.5% Mo.

The mixture was ground to obtain 100 g of a finely powdered mixture in which 250 wt. parts of iron (Fe), 170 wt. parts of zinc (Zn), 25 wt. parts of copper (Cu), 70 wt. parts of manganese (Mn), 80 wt. parts of boron (B), 3.8 wt. parts of iodine (I) and 1.5 wt. molybdenum (Mo) parts.

Example 6

In order to prepare a shaped bath additive (8 pieces) according to the solution in the laboratory, 162 g of technical potassium carbonate, K ₂ CO ₃ , was weighed into a plastic container, in which a weight loss of 14.38% was determined by drying at 105 °C. 12 g each of star anise, clove and cinnamon essential oils, obtained by steam distillation, were added. The obtained mushy mixture was thoroughly mixed, and then 290 g of technical anhydrous - calcined magnesium sulfate, MgSO4, containing min. 33% MgO. After the mixture was homogenized, 24 g of the powdered mixture of microelements according to example 5 and 0.25 g of the powdered food coloring "brown gold (59050)" were added.

Then the mixture was mixed well again. Finally, 438 g of crystalline urea phosphate CO(NH ₂ ).H ₃ PO 4 , prepared in the manner described in example 1, was added. The character of the constantly thoroughly stirred mixture gradually changed with the addition of urea phosphate. After about 10 minutes, the mixture took on a slightly moistened character and clumps began to form during mixing, so it was possible to start dispensing it into the silicone molds. The molds were first almost completely filled with the prepared mixture. Then, using tweezers, pieces of solidified capuacu butter (á: 1.6 g) were inserted into the moistened mixture in the molds, which were covered with the moistened mixture and then the contents of the mold were compacted with slight pressure. The vegetable butter was pre-processed into the form of solidified "castings" using a silicone mold. Subsequently, another quantity of the wetted mixture was gradually added and continued with its compaction until the molds were completely filled. The mixture in the molds was allowed to set freely at room temperature. After about 24 hours, the shaped bath additive, enriched with citrus oil and capuacu butter, separated from the molds according to the solution. Each of the eight prepared shaped bath additives contained at least: approx. 1.6 g of vegetable - capuacu butter, 18 g of urea, 9 g of phosphorus (as P), 10 g (as K), 6 g of magnesium (Mg), 8 g of sulfur ( S), almost 289 mg of iron (Fe), more than 196 mg of zinc (Zn), almost 29 mg of copper (Cu), approx. 81 mg of manganese (Mn), approx. 4.3 mg of iodine (I), approx. 1.3 mg of selenium (Se), almost 1.8 mg of molybdenum (Mo) and almost 93 mg of boron (B).

Example 7

Warm water was poured into the bathroom tub measuring approx. 145 x 55 cm to a height of approx. 19-20 cm, from which it can be assumed that the volume of water corresponded to approx. 150 liters. One piece of the shaped bath additive prepared in the manner described in example 6 was added to the water. As soon as the product was soaked, a significant leakage of the resulting carbon dioxide in the form of bubbles was observed, while the additive dissolved within about 10 minutes, the water turned a very faint yellow-brown coloring and the surrounding air smelled pleasantly due to the releasing essential oils. A fine film formed by the dissolution of vegetable butter was observable on the calm surface of the water. Water enriched in this way, with a slightly acidic chemical reaction (pH approx. 6.5), was used for a relaxing bath, while it was determined by calculation that a liter of water treated in this way contained on average: approx. 120 mg of urea, approx. 1.6 g of vegetable butter, 60 mg of phosphorus (P), 67 mg potassium (K), 40 mg magnesium (Mg), 53 mg sulfur (S), 1.9 mg iron (Fe), 1.3 mg zinc (Zn), 0.6 mg boron (B ), 190 pg copper (Cu), 540 pg manganese (Mn), 29 pg iodine (I), 9 pg selenium (Se) and 12 pg molybdenum (Mo).

Example 8

In order to prepare a specially adapted bath additive according to the solution, which should be used mainly for a relaxation-rehabilitation bath that has a beneficial effect on the healing process of skin disease, the same procedure was followed as in example 3, while slightly different raw materials and their quantities were used.

162 g of technical potassium carbonate, K ₂ CO ₃ , were weighed into a plastic container, where a weight loss of 14.38% was determined by drying at 105 °C. 20 g of powdered extract of calendula (Calendula cjficinalis L.) and 15 g each of powdered extract of rapeseed (Agrimonia eupatoria) and common yarrow (Achillea millefolium) were added. The obtained mixture was thoroughly mixed, and then 200 g of technical anhydrous - calcined magnesium sulfate, MgSO4, which contained min. 33% MgO and 90 g

SK 9793 Υ1 of powdered colloidal sulfur prepared by wet grinding elemental sulfur in the presence of magnesium lignosulfonate as a dispersant. The powder mixture was mixed well again. Finally, 380 g of crystalline urea phosphate - CO(NH ₂ ).H3PO4, prepared in the manner described in example 1, was added.

With the addition of urea phosphate, the character of the constantly thoroughly stirred mixture gradually changed. After about 10 minutes, the mixture took on a slightly moistened character and clumps started to form when mixing it, so it was possible to start dispensing the prepared mixture into the silicone molds.

The molds were first almost completely filled with the prepared mixture. After that, pieces of solidified shea butter (á: 1.6 g) were inserted into the moistened mixture in the molds using tweezers, which were covered with the moistened mixture, and then the contents of the mold were compacted with slight pressure. The shea butter was previously prepared into the form of solidified "castings" using a silicone mold. Subsequently, another quantity of the wetted mixture was gradually added and continued with its compaction until the molds were completely filled. The mixture filled into silicone molds was allowed to solidify freely at room temperature. After about 24 hours, the shaped preparation - bath additive according to the solution - separated from the molds.

Example 9

In the preparation of the shaped bath additive in the sense of the solution, the procedure was similar to the preparation described in example 6, while 80 g of powdered gelatin was added to the mixture together with magnesium sulfate.

Example 10

The mixture for the preparation of the shaped bath additive was prepared in the same way as in example 6, while before the addition of crystalline urea phosphate, 40 g of powdered chitosan prepared by partial deacetylation of chitin obtained from waste after the processing of marine crustaceans was added to the mixture.

Example 11

When preparing the powder mixture intended for the production of a shaped bath additive according to the solution, the procedure was similar to that in example 8, with the difference that instead of rapeseed and yarrow extracts, 15 g of crystalline l-ascorbic acid (vitamin C) and 30 g of powdered brewer's yeast ( natural source of complex B vitamins and folic acid). The amount of powdered colloidal sulfur in the preparation was reduced to 50 g. However, the dosage of the other raw materials, as well as the procedure for the preparation of the shaped additive, was the same as in the already mentioned example 8.

Example 12

The water after the bath in the garden tub, into which about 800 liters of well water was placed and was enriched with the addition of 3 pieces of shaped additives according to the solution (total weight approx. 350 g), was used for fertilizing vegetables and fruit trees in the form of a fertilizer dressing.

Industrial applicability

It is characteristic of a bath additive in the sense of a solution that, in addition to magnesium sulfate and some of the potassium carbonates, it also contains urea phosphate - CO(NH2)2.H ₃ PO4. According to the solution, bath additives can also contain other components that increase their utility value (plant essential oils, plant butters, some other biogenic elements, etc.). The process of preparing additives is undemanding and its implementation does not require the use of special procedures and equipment. Bath additives according to the solution are designed to adjust the composition of water intended for both relaxation and rehabilitation baths. The water after the bath can be effectively used for fertilizing the cultivated plants.

Claims (9)

1. Bath additive containing magnesium sulfate and one of the potassium carbonates, characterized by the fact that it contains urea phosphate - CO(NH2)2.H ₃ PO4. 2. Bath additive containing magnesium sulfate and one of the potassium carbonates according to claim 1, characterized in that it contains vegetable butter. 3. Bath additive containing magnesium sulfate and one of the potassium carbonates according to claim 1, characterized in that it contains vegetable essential oil. 4. Bath additive containing magnesium sulfate and one of the potassium carbonates according to claim 1, characterized in that it contains one of the sulfate-thiosulfates or elemental sulfur. 5. Bath additive containing magnesium sulfate and one of the potassium carbonates according to claim 1, characterized in that it contains bioinorganic trace elements-microelements. 6. Bath additive containing magnesium sulfate and one of the potassium carbonates according to claim 1, characterized by the fact that it contains vitamins. 7. Bath additive containing magnesium sulfate and one of the potassium carbonates according to claim 1, characterized in that it contains one of the collagen or chitin polysaccharides. 8. Bath additive containing magnesium sulfate and one of the potassium carbonates according to claim 1, characterized by the fact that it is in the form of a powder-crystalline mixture, which is prepared into a compacted - shaped form. 9. Use of a bath additive based on magnesium sulfate and one of the potassium carbonates according to claim 1 to improve the properties of water intended for a relaxing and/or rehabilitation bath.