AT100734B - Process for the preparation of sodium tribismutyl tartrate. - Google Patents

Process for the preparation of sodium tribismutyl tartrate.

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Publication number
AT100734B
AT100734B AT100734DA AT100734B AT 100734 B AT100734 B AT 100734B AT 100734D A AT100734D A AT 100734DA AT 100734 B AT100734 B AT 100734B
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AT
Austria
Prior art keywords
tartrate
sodium
tribismutyl
preparation
bismuth
Prior art date
Application number
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German (de)
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Boehringer & Soehne Gmbh
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Publication of AT100734B publication Critical patent/AT100734B/en

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  • Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)

Description

  

   <Desc/Clms Page number 1> 
 



  Verfahren zur Darstellung von Natriumtribismutyltartrat. 



   Im Gegensatz zu den komplexen Kaliumwismuttartraten sind Natriumsalze der Wismutwein. säure in reinem Zustand und in fester Form bisher nicht erhalten worden ("Zeitschrift für anorganische Chemie", 48, [1906], S.   212, vorletzterAbsatz ;"Archiv derPharmazie", 246, [1908],   S. 501,   letzterAbsatz).   



   Wie nun gefunden wurde, kann man leicht zu einem Natriumtribismutyltartrat gelangen, wenn man reines Wismuthydroxyd im Überschuss auf Dinatriumtartrat zur Einwirkung bringt. Die auf diese Weise erhältliche Komplexverbindung ist ausgezeichnet durch ausserordentlich leichte Löslichkeit und durch einen hohen Wismutgehalt (71'14%), Eigenschaften, die ihr besondere Eignung für die Anwendung in der Therapie, vor allem zu Injektionszwecken, verleihen. 



   Beispiel : Eine molare Lösung Von Dinatriumtartrat wird auf dem Wasserbad zwei Stunden lang mit überschüssigem, reinem Wismuthydroxyd erhitzt. Ein geeignetes Wismuthydroxyd kann man z. B. nach der Vorschrift Von Vanino und Zumbusch ("Archiv der Pharmazie", 248, [1910], S. 665) gewinnen. 



  Bei der Behandlung auf dem Wasserbad gehen auf je 5 Moleküle Dinatriumtartrat 2 Moleküle Wismuthydroxyd in Lösung. Nach dem Abkühlen des Reaktionsgemisches versetzt man mit dem gleichen Volumen   50% igen   Alkohols. Es fällt dabei ein sehr   feinkristallinischer   Niederschlag aus, den man auf der Nutsche abfiltriert und einigemal mit 50   % igen   Alkohol nachwäscht. Auf diese Weise wird ein gleichzeitiges Ausfallen von Natriumtartrat vermieden. Nach dem Trocknen bildet das neue Produkt eine weisse, zusammenhängende, mikrokristallinische Masse, die leicht mit alkalischer Reaktion in Wasser löslich ist. Sie ist unlöslich in organischen Lösungsmitteln. Die Zusammensetzung entspricht der Formel
COONa. CHO. BiO. CHO. BiO. COO. BiO + 2H2O. 

**WARNUNG** Ende DESC Feld kannt Anfang CLMS uberlappen**.



   <Desc / Clms Page number 1>
 



  Process for the preparation of sodium tribismutyl tartrate.



   In contrast to the complex potassium bismuth tartrates, sodium salts are the bismuth wine. acid has not yet been obtained in the pure state and in solid form ("Zeitschrift für inorganic Chemie", 48, [1906], p. 212, penultimate paragraph; "Archiv derPharmazie", 246, [1908], p. 501, last paragraph).



   As has now been found, sodium tribismutyl tartrate can easily be obtained if pure bismuth hydroxide is brought into action in excess of disodium tartrate. The complex compound obtainable in this way is distinguished by its extremely easy solubility and by a high bismuth content (71-14%), properties which make it particularly suitable for use in therapy, especially for injection purposes.



   Example: A molar solution of disodium tartrate is heated on a water bath for two hours with excess, pure bismuth hydroxide. A suitable bismuth hydroxide can be, for. B. win according to the rule Von Vanino and Zumbusch ("Archiv der Pharmazie", 248, [1910], p. 665).



  During treatment on a water bath, 2 molecules of bismuth hydroxide dissolve for every 5 molecules of disodium tartrate. After the reaction mixture has cooled, the same volume of 50% alcohol is added. A very finely crystalline precipitate separates out, which is filtered off on the suction filter and washed several times with 50% alcohol. In this way, simultaneous precipitation of sodium tartrate is avoided. After drying, the new product forms a white, coherent, microcrystalline mass that is easily soluble in water with an alkaline reaction. It is insoluble in organic solvents. The composition corresponds to the formula
COONa. CHO. BiO. CHO. BiO. COO. BiO + 2H2O.

** WARNING ** End of DESC field may overlap beginning of CLMS **.

 

Claims (1)

PATENT-ANSPRUCH : Verfahren zur Darstellung von Natriumtribismutyltartrat, dadurch gekennzeichnet, dass man Wismuthydroxyd auf Dinatriumtartrat einwirken lässt. **WARNUNG** Ende CLMS Feld Kannt Anfang DESC uberlappen**. PATENT CLAIM: Process for the preparation of sodium tribismutyl tartrate, characterized in that one Allow bismuth hydroxide to act on disodium tartrate. ** WARNING ** End of CLMS field may overlap beginning of DESC **.
AT100734D 1924-08-18 1924-08-18 Process for the preparation of sodium tribismutyl tartrate. AT100734B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT100734T 1924-08-18

Publications (1)

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AT100734B true AT100734B (en) 1925-08-10

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AT100734D AT100734B (en) 1924-08-18 1924-08-18 Process for the preparation of sodium tribismutyl tartrate.

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AT (1) AT100734B (en)

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