PL84B1 - A method of making water-soluble, insoluble or sparingly soluble organic materials. - Google Patents

A method of making water-soluble, insoluble or sparingly soluble organic materials. Download PDF

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Publication number
PL84B1
PL84B1 PL84A PL8419A PL84B1 PL 84 B1 PL84 B1 PL 84B1 PL 84 A PL84 A PL 84A PL 8419 A PL8419 A PL 8419A PL 84 B1 PL84 B1 PL 84B1
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PL
Poland
Prior art keywords
soluble
insoluble
organic materials
making water
soluble organic
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Application number
PL84A
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Polish (pl)
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Publication date
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Publication of PL84B1 publication Critical patent/PL84B1/en

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Znaleziono, ze estry karbaminowych kwasów, uretany, przedstawiaja znakomi¬ te srodki rozpuszczajace dla trudno roz¬ puszczalnych, wzglednie nierozpuszczal¬ nych zwiazków organicznych. Zalety tych rozpuszczalników polegaja na ich neu¬ tralnym charakterze i na. pozadanej dla niektórych celów, nieobecnosci skladni¬ ków nieorganicznych.Ponadto w wielu wypadkach innemi rozpuszczalnikami wzgl. woda mozna osia¬ gnac daleko idace wzgl. nieograniczone rozcienczenie uzyskanych uretanami roz¬ tworów.Rozpuszczalnoscia w uretanach odzna¬ czaja sie zwiazki nastepujacych ty¬ pów. 1. Alkohole, (amylowy alkohol, ben¬ zylowy alkohol, cykloheicsanol, geraniol). 2. Zasady (anilina, fenylohydrozyna* chinolina i izochinolina). 3. Alkaloidy (chinina, optochina, mor¬ fina). 4. Dalej srodki lecznicze, nalezace do róznych klas cial, jak paraldehyd, sulfonal, antipiryna, tymol, fenacetyna, ane¬ stezyna, kamfora, puryny i t. d. 5. Olejki- eteryczne* Takze rozpuszczaja sie naturalne i sztuczne barwniki. Opisane zachowanie moze byc stwierdzone równiez na etylo- uretanie jak i na wyzszych i nizszych estrach kwasów karbominowych, jak me¬ tylowy, propylowy, izoamylowy, allylowy i glicerynowy ester.• Roztwory otrzymane z pomoca tych estrów sa trwale i daja sie wyjalowiac.Przez odparowanie takich roztworówmozna dojsc takze do preparatów sta- fych, przedstawiajacych mieszanine sub¬ stancji rozpuszczajacej i rozpuszczonej i dajacych sie latwo przez przyjecie wo¬ dy zpowrotem przeprowadzic w roztwór.Przyklady: 1.W 40%-wym wodnym roztworze ety- louretanu rozpuszcza sie w zwyklej tem¬ peraturze 20% alkoholu amylowego. 2. 50%_wy roztwór metylouretanu przyj¬ muje okolo 16% chinoliny. 3.W wodnym roztworze etylouretanu (75%-wy) rozpuszcza sie gladko 2% chi¬ niny; otrzymany roztwór mazna dowolnie rozcienczac woda, przyczem nie wyste¬ puje zmetnienie lub wydzielenie.Wieksze ilosci, az do 4%, zasady sa równiez utrzymywane w roztworze.Moznosc rozcienczania woda jest jed¬ nak wtedy ograniczona.W 50%-wym roztworze etylouretanu rozpuszcza sie latwo 2% optochininy. 4.Ze srodków leczniczych, które moga byc latwo utrzymywane w roztworze uretanu (75%-wy) i które mozna nieo- graniczenie woda rozcienczac, wymienia sie: antyfebryna w 3%, weronal w 3%, salipiryna w 25%, piramidon w 30%, sulfonal w 15%; paraldehyd w 30%, »en- - tol i borneol w 2%, tymol w 5%, kam¬ fora w 5%. 5.Cytral, safrol i olejek cynamonowy rozpuszczaja sie 2%-wo w 40%«wym roztworze metylouretanu. 6.Nierozpuszczalne barwniki jak nigro- zyna i alizaryna, barwniki azowe jak su- dan I i II rozpuszczaja sie w 5% w wod¬ nym roztworze acetylouretanu (50%-wy)- PL PLIt has been found that the carbamic acid esters of urethanes represent excellent dissolving agents for sparingly soluble, relatively insoluble organic compounds. The advantages of these solvents lie in their neutral nature and in their nature. desirable for some purposes, the absence of inorganic ingredients, and in many cases with other solvents or water can be achieved far-reaching or unlimited dilution of the solutions obtained with urethanes. Compounds of the following types show solubility in urethanes. 1. Alcohols (amyl alcohol, benzyl alcohol, cycloheicsanol, geraniol). 2. Bases (aniline, phenylhydrosine * quinoline and isoquinoline). 3. Alkaloids (quinine, optoquine, morphine). 4. Further medications belonging to different classes of the body, such as paraldehyde, sulfonal, antipyrin, thymol, phenacetin, anesthesin, camphor, purines, etc. 5. Essential oils * Also, natural and artificial dyes dissolve. The described behavior can also be observed on ethyl-urethane as well as on higher and lower esters of carbomic acids, such as methyl, propyl, isoamyl, allyl and glycerol esters. Such solutions can also result in solid preparations, which present a mixture of dissolving and dissolved substances and can be easily reconstituted by ingesting water. Examples: 1. In a 40% aqueous solution of ethylurethane, it is dissolved in the usual 20% amyl alcohol. 2. A 50% solution of methyl urethane absorbs about 16% of quinoline. 3. 2% of quinine is smoothly dissolved in an aqueous solution of ethylurethane (75%); The resulting solution can be diluted with water as desired, but there is no turbidity or separation. Larger amounts, up to 4%, are also kept in solution. The dilution capacity with water is limited, however. 50% ethylurethane solution dissolves. easily 2% optoquinine. (4) Medicines that can be easily kept in a urethane solution (75%) and that can be diluted indefinitely with water are: 3% antifebrin, 3% veronal, 25% salipirin, 30% pyramidone %, sulfonal at 15%; 30% paraldehyde, 2% enterol and borneol, 5% thymol, 5% camphor. 5. Citral, safrole and cinnamon oil dissolve 2% by weight in 40% methylurethane solution. 6. Insoluble dyes such as nigrosin and alizarin, azo dyes such as soda I and II dissolve in 5% in an aqueous solution of acetylurethane (50%) - PL EN

Claims (1)

1. Zastrzezenie patentowe. Sposób robienia rozpuszczalnemi w wo¬ dzie trudno lub nierozpuszczalnych orga¬ nicznych materjalów, znamienny przez uzycie estrów karbaminowych kwasów. ZAKLGRAF.KOZIANSKICH W WARSZAWIE PL PL1. Patent claim. A method of making water-soluble or insoluble organic materials, characterized by the use of carbamate esters of acids. KOZIANSKI SCHOOLS IN WARSAW PL PL
PL84A 1919-12-03 A method of making water-soluble, insoluble or sparingly soluble organic materials. PL84B1 (en)

Publications (1)

Publication Number Publication Date
PL84B1 true PL84B1 (en) 1924-05-26

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