BE337675A - - Google Patents

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Publication number
BE337675A
BE337675A BE337675DA BE337675A BE 337675 A BE337675 A BE 337675A BE 337675D A BE337675D A BE 337675DA BE 337675 A BE337675 A BE 337675A
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BE
Belgium
Prior art keywords
parts
sodium
formaldehyde
sulphurous
water
Prior art date
Application number
Other languages
French (fr)
Publication of BE337675A publication Critical patent/BE337675A/fr

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  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Description

       

   <Desc/Clms Page number 1> 
 
 EMI1.1 
 



  "procédé pour l'obtention de meroapto-sulpho-aoldes organiques de métaux". 



  Le sel de dinatrium de   l'acide-4-iminométhylène   sulfureux- 
 EMI1.2 
 aeide-2-auromercaptobenzol-l-sulf onique (voir l'exemple 3) peut ; comme on en a fait la   constatation, également   s'obtenir en fai- sant agir de la soude   formaldéhydosulfureuse   sur le sel de 
 EMI1.3 
 sodium de l'acide 4-amino-2-auromercap'obenzol-1-sulfonique (voir l'exemple 2 de la description du brevet principal). 



   En procédant d'une façon similaire on obtient des combinai- sons analogues des métaux lourds. 



   Exemple 1. 



   On fait dissoudre 42,3 parties de 4-amino-2-auromercaptoben-   zol-1-sulfonate   de soude dans 200 parties. d'eau; on ajoute 13 parties de soude formaldéhydo-sulfureuse, et l'on chauffe la so- 

 <Desc/Clms Page number 2> 

 lution jusqu'à l'ébullition tout en l'agitant. On laisse alors refroidir et l'on provoque la précipitation du composé bisulfi- toformaldéhyde par de l'alcool. Le composé est d'un jaune clair, 
 EMI2.1 
 ont aisément aolublo ctcuzu l'01.1.U , ut u u.1:l tuuaur un or de 3ô;.,. 
Exemple 2. 



  On fait dissoudre dans 150 parties d'eau 33,4 parties de 
 EMI2.2 
 4-amino-2-argentomereaptobenzol-l-sulfonate de soude, puis on ajoute 14 parties de soude forraaldéhydo-sulfureuse, et l'on chauffe la solution tout en l'agitant , jusqu'à l'ébullition. 



  Après le refroidissement on provoque la précipitation, par l'al- cool, du composé bisulfito-formaldéhyde ainsi formé. 



   Le sel de dinatrium de l'acide 4-iminométhylène sulfureux- acide-2-argentomercaptobenzol-l-sulfonique est une poudre d'un jaune clair,très facilement soluble dans l'eau, et sa teneur en argent est de 24 %. 



   Exemple 3. 



   On fait dissoudre dans 150 parties d'eau 29,5 parties de 4- 
 EMI2.3 
 amino-2-bismutomercaptobenzol-l-sulfonate de soude, puis on ajoute 14 parties de soude formaldéhydo- sulfureuse, et l'on chauffe jusqu'à ébullition. La solution d'un brun rougeâtre clair est, après refroidissement ,précipitée par l'alcool, et le produit de la condensation s'obtient ainsi sous forme d'une poudre d'un jaune orangé,facilement soluble dans l'eau, et ayant une teneur en bismuth de 16,5 %.



   <Desc / Clms Page number 1>
 
 EMI1.1
 



  "Process for obtaining organic meroapto-sulpho-alides of metals".



  The dinatrium salt of 4-iminomethylene sulfurous acid
 EMI1.2
 aeide-2-auromercaptobenzol-1-sulfonic (see Example 3) can; as it has been observed, also obtained by making the formaldehyde sulphurous soda act on the salt of
 EMI1.3
 sodium of 4-amino-2-auromercap'obenzol-1-sulfonic acid (see Example 2 of the description of the main patent).



   By proceeding in a similar fashion, analogous combinations of heavy metals are obtained.



   Example 1.



   42.3 parts of sodium 4-amino-2-auromercaptobenzol-1-sulfonate are dissolved in 200 parts. water; 13 parts of formaldehyde-sulphurous soda are added, and the sol-

 <Desc / Clms Page number 2>

 lution until boiling while stirring. It is then allowed to cool and the bisulfitoformaldehyde compound is precipitated with alcohol. The compound is light yellow,
 EMI2.1
 have easily aolublo ctcuzu the 01.1.U, ut u u.1: l tuuaur a gold of 3ô;.,.
Example 2.



  33.4 parts of water are dissolved in 150 parts of water
 EMI2.2
 Sodium 4-amino-2-argentomereaptobenzol-l-sulfonate, then 14 parts of forraaldehyde-sulfurous sodium hydroxide are added, and the solution is heated while stirring, until boiling.



  After cooling, the bisulphite-formaldehyde compound thus formed is precipitated with the alcohol.



   4-Iminomethylene sulfurous acid-2-argentomercaptobenzol-1-sulfonic acid dinatrium salt is a light yellow powder, very easily soluble in water, and its silver content is 24%.



   Example 3.



   29.5 parts of 4- are dissolved in 150 parts of water
 EMI2.3
 sodium amino-2-bismutomercaptobenzol-1-sulfonate, then 14 parts of formaldehyde-sulfurous sodium hydroxide are added, and the mixture is heated to boiling. The solution of a light reddish brown is, after cooling, precipitated by alcohol, and the product of condensation is thus obtained in the form of an orange-yellow powder, easily soluble in water, and having a bismuth content of 16.5%.


    

Claims (1)

REVENDICATION. CLAIM. Modification au procédé faisant l'objet de la demande de brevet déposée le 9 décembre 1925 sous le n 330 698,oaractéri- sée en ce que ,aux fins d'obtenir les sels de dinatrium des aci- EMI2.4 des 4-.minométhylène sulfureuse acide 2-meroaptobenzol métallique- l-sulfoniques on fait agir de la soude formaldéhydo-sulfureuse EMI2.5 sur des sole de sodium dos acides 4-am1no--moroaptobenzol métal- EMI2.6 Z i que-I-su7.f oni que s . Modification to the process which is the subject of the patent application filed on December 9, 1925 under No. 330,698, characterized in that, for the purposes of obtaining the dinatrium salts of acids EMI2.4 4-.minomethylene sulphurous 2-meroaptobenzol metal-l-sulphonic acid, formaldehyde-sulphurous soda is allowed to act EMI2.5 on sodium soles of 4-amino acids - moroaptobenzol metal- EMI2.6 Z i que-I-su7.f oni que s.
BE337675D BE337675A (en)

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