AT35550B - Process for the preparation of easily soluble silver compounds of nucleic acids and their formaldehyde derivatives. - Google Patents

Process for the preparation of easily soluble silver compounds of nucleic acids and their formaldehyde derivatives.

Info

Publication number
AT35550B
AT35550B AT35550DA AT35550B AT 35550 B AT35550 B AT 35550B AT 35550D A AT35550D A AT 35550DA AT 35550 B AT35550 B AT 35550B
Authority
AT
Austria
Prior art keywords
nucleic acids
preparation
silver compounds
easily soluble
soluble silver
Prior art date
Application number
Other languages
German (de)
Original Assignee
Farbenfab Vorm Bayer F & Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from DE1906188435D external-priority patent/DE188435C/de
Application filed by Farbenfab Vorm Bayer F & Co filed Critical Farbenfab Vorm Bayer F & Co
Application granted granted Critical
Publication of AT35550B publication Critical patent/AT35550B/en

Links

Description

  

   <Desc/Clms Page number 1> 
 
 EMI1.1 
 
 EMI1.2 
 

 <Desc/Clms Page number 2> 

 
 EMI2.1 
 in Lösung bringen. 



   Beispiel   l.   



   100 Teile nukleinsaures Natrium aus Hefe werden in 300 Teilen Wasser gelöst und unter   rmriihren mit   einer Lösung von 40 Teilen Silbernitrat in Wasser versetzt. Es entsteht ein dicker Brei, zu welchem man, nach und nach solange eine gesättigte Kochsalzlösung hinzugiebt, bis eine klare Lösung entstanden ist. Dieselbe wird dann mit Alkohol gefällt, der Niederschlag mehrmals mit Alkohol gewaschen und im Vakuum getrocknet. Das neue Produkt bildet ein gelblich weisses in Wasser mit gelblich brauner Farbe leicht lösliches Pulver, welches ca.   22-23%   Silber enthält. Es i-t unlöslich in Äther und Benzol. 



   Beispiel 2. 



   50 Teile nukleinsaures Natrium aus Thymus werden in 150 Teilen Wasser gelöst und mit einer Lösung von 19, 5 Teilen Silbernitrat in 60 Teilen Wasser versetzt. Zu dem entstandenen Brei giebt man darauf langsam eine wässerige Natriumazetatlösung bis wieder Klärung erfolgt ist und verarbeitet die so erhaltene Lösung nach eventuellem Filtrieren, wie in Beispiel 1 angegeben. Das so erhaltene Produkt gleicht in seinen Eigenschaften dem in diesem Beispiel-be-   schriebenen Produkt.   



   Beispiel 3. 



   100 Teile der nach Beispiel 1 der deutschen Patentschrift Nr. 139907 dargestellten Formal-   dehydverbindung   der Nukleinsäure werden in 300 Teilen Wasser und unter Umrühren mit einer wässerigen Lösung von 40 Teilen Silbernitrat versetzt. Es entsteht ein dicker Niederschlag, der durch Zusatz   einer gesättigten   Kochsalzlösung wieder in Lösung gebracht wird. Aus dieser Lösung wird durch Fällen mit Alkohol oder Eindampfen im Vakuum die Silberverbindung der Formal- 
 EMI2.2 
   auf. Es enthält etwa 22% Silber.



   <Desc / Clms Page number 1>
 
 EMI1.1
 
 EMI1.2
 

 <Desc / Clms Page number 2>

 
 EMI2.1
 bring into solution.



   Example l.



   100 parts of sodium nucleic acid from yeast are dissolved in 300 parts of water and, while stirring, a solution of 40 parts of silver nitrate in water is added. The result is a thick paste to which a saturated saline solution is gradually added until a clear solution has formed. The same is then precipitated with alcohol, the precipitate washed several times with alcohol and dried in vacuo. The new product forms a yellowish white powder which is easily soluble in water with a yellowish brown color and which contains approx. 22-23% silver. It is insoluble in ether and benzene.



   Example 2.



   50 parts of sodium nucleic acid from thymus are dissolved in 150 parts of water, and a solution of 19.5 parts of silver nitrate in 60 parts of water is added. An aqueous sodium acetate solution is then slowly added to the resulting pulp until it has become clear again, and the solution obtained in this way is processed as indicated in Example 1 after filtering, if necessary. The product obtained in this way has the same properties as the product described in this example.



   Example 3.



   100 parts of the formaldehyde compound of the nucleic acid shown in Example 1 of German Patent No. 139907 are mixed with an aqueous solution of 40 parts of silver nitrate in 300 parts of water and while stirring. A thick precipitate is formed, which is brought back into solution by adding a saturated saline solution. From this solution, the silver compound of the formal-
 EMI2.2
   on. It contains about 22% silver.

 

Claims (1)

PATENT-ANSPRUCH ; Verfahren zur Darstellung von leicht löslichen Silberverbindungen der Nukleinsäuren und deren Formaldehydderivaten, darin bestehend, dass man die durch die Einwirkung von Silberverbindungen auf Nukleinsäuren, deren Formaldehydderivate oder die Salze dieser Ver- EMI2.3 PATENT CLAIM; Process for the preparation of readily soluble silver compounds of nucleic acids and their formaldehyde derivatives, consisting in that the effects of silver compounds on nucleic acids, their formaldehyde derivatives or the salts of these compounds EMI2.3
AT35550D 1906-03-27 1907-07-05 Process for the preparation of easily soluble silver compounds of nucleic acids and their formaldehyde derivatives. AT35550B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1906188435D DE188435C (en) 1906-03-27

Publications (1)

Publication Number Publication Date
AT35550B true AT35550B (en) 1908-12-28

Family

ID=5720884

Family Applications (1)

Application Number Title Priority Date Filing Date
AT35550D AT35550B (en) 1906-03-27 1907-07-05 Process for the preparation of easily soluble silver compounds of nucleic acids and their formaldehyde derivatives.

Country Status (1)

Country Link
AT (1) AT35550B (en)

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