CH127934A - Process for the preparation of a solid diazo salt. - Google Patents

Process for the preparation of a solid diazo salt.

Info

Publication number
CH127934A
CH127934A CH127934DA CH127934A CH 127934 A CH127934 A CH 127934A CH 127934D A CH127934D A CH 127934DA CH 127934 A CH127934 A CH 127934A
Authority
CH
Switzerland
Prior art keywords
diazo salt
preparation
solid
solid diazo
salt
Prior art date
Application number
Other languages
German (de)
Inventor
Aktiengesellsc Farbenindustrie
Original Assignee
Ig Farbenindustrie Ag
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
Application filed by Ig Farbenindustrie Ag filed Critical Ig Farbenindustrie Ag
Publication of CH127934A publication Critical patent/CH127934A/en

Links

Description

  

  Verfahren zur Darstellung eines festen     Diazosalzes.       Es wurde gefunden, dass man durch  Umsetzung von     Diazosalzlösungen    mit freier       p-Chlorbenzolsulfosäure    oder einem ihrer  Salze weisse oder gefärbte feste     Diazosalze     erhält, die sich durch eine gute     Abscheid-          barkeit    bei genügender Löslichkeit und gute  Beständigkeit auszeichnen.

   Zum Beispiel  eignen sich für das Verfahren Lösungen der  Salze von dianotierten     Nitranilinen,    Chlor  nitranilinen,     Dichloranilinen,    Chlor- und       Nitrotoluidinen,        Nitroaminophenolalkyläthern,     sowie     ortho-Aminophenolaryläthern.     



  Die neuen so erhaltenen festen     Diazosalze     sind wertvolle Produkte für die Zwecke der  Färberei und Druckerei. Unter Umständen  ist es zweckmässig, ihnen geeignete Verdün  nungsmittel und     Färbereihilfsprodukte    zuzu  setzen.  



  Vorliegendes Patent bezieht sich auf ein  Verfahren zur Darstellung eines festen     Diazo-          salzes    durch Umsetzung einer     Diazosalz-          lösung    des     5-1\Titro-2-amino-l-anisols    mit  einem     p-chlorbeiizolsulfosauren    Salz oder auch  mit freier     p-Chlorbenzolsulfosäure.       Das so erhaltene feste     Diazosalz    stellt  ein bräunliches und in Wasser lösliches  Pulver dar.  



  <I>Beispiel:</I>  Eine     Diazolösung,    hergestellt aus 252  Teilen     5-Nitro-2-amino-l-anisol,    750 Teilen  15     o/oiger    Salzsäure und 263 Teilen einer  40      /oigen        Natriumnitritlösung,    wird unter  Kühlung mit 1420 Teilen einer etwa<B>60'</B>  warmen 25     o/oigen    Lösung von     p-chlorbenzol-          sulfosaurem    Natrium vermischt. Wenn die  Umsetzung beendet ist, wird das ausge  schiedene     Diazosalz        abfiltriert    und getrocknet.



  Process for the preparation of a solid diazo salt. It has been found that reacting diazo salt solutions with free p-chlorobenzenesulfonic acid or one of its salts gives white or colored solid diazo salts which are distinguished by good separability with sufficient solubility and good stability.

   For example, solutions of the salts of dianotized nitranilines, chloronitranilines, dichloroanilines, chloro- and nitrotoluidines, nitroaminophenol alkyl ethers and ortho-aminophenol aryl ethers are suitable for the process.



  The new solid diazo salts obtained in this way are valuable products for the purposes of dyeing and printing. It may be useful to add suitable diluents and dyeing auxiliaries to them.



  The present patent relates to a process for the preparation of a solid diazo salt by reacting a diazo salt solution of 5-1 \ titro-2-amino-1-anisole with a p-chlorobeiizolesulfonic acid salt or with free p-chlorobenzenesulfonic acid. The solid diazo salt obtained in this way is a brownish powder which is soluble in water.



  <I> Example: </I> A diazo solution, prepared from 252 parts of 5-nitro-2-amino-1-anisole, 750 parts of 15% hydrochloric acid and 263 parts of a 40% sodium nitrite solution, is added with 1420 parts with cooling an approximately <B> 60 '</B> warm 25% solution of sodium p-chlorobenzenesulfonate. When the reaction has ended, the diazo salt which has separated out is filtered off and dried.

 

Claims (1)

PATENTANSPRUCH: Verfahren zur Darstellung eines festen Diazosalzes, dadurch gekennzeichnet, dass man eine Diazosalzlösung des 5-Nitro-2- amino-l-anisols mit p-Chlorbenzolsulfosäure oder einem ihrer Salze umsetzt. Das so erhaltene feste Diazosalz stellt ein bräunliches und in Wasser lösliches Puver dar. Claim: Process for the preparation of a solid diazo salt, characterized in that a diazo salt solution of 5-nitro-2-amino-1-anisole is reacted with p-chlorobenzenesulphonic acid or one of its salts. The solid diazo salt obtained in this way is a brownish powder that is soluble in water.
CH127934D 1926-02-12 1927-02-11 Process for the preparation of a solid diazo salt. CH127934A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE127934X 1926-02-12
CH126405T 1927-02-11

Publications (1)

Publication Number Publication Date
CH127934A true CH127934A (en) 1928-09-17

Family

ID=25710659

Family Applications (1)

Application Number Title Priority Date Filing Date
CH127934D CH127934A (en) 1926-02-12 1927-02-11 Process for the preparation of a solid diazo salt.

Country Status (1)

Country Link
CH (1) CH127934A (en)

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