CH127942A - Process for the preparation of a solid diazo salt. - Google Patents

Process for the preparation of a solid diazo salt.

Info

Publication number
CH127942A
CH127942A CH127942DA CH127942A CH 127942 A CH127942 A CH 127942A CH 127942D A CH127942D A CH 127942DA CH 127942 A CH127942 A CH 127942A
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 CH127942A publication Critical patent/CH127942A/en

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

Description

  

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

   Zum Beispiel eignen sich  für das Verfahren Lösungen der Salze von       diazotierten        Nitranilinen,        Chlornitranilinen,          Dichloranilinen,    Chlor- und     Nitrotoluidinen,          Eitroaminophenolalkyläthern,    sowie     ortho-          Aminophenola.ryläthern.     



  Die neuen so erhaltenen festen     Diazo-          salze    sind wertvolle Produkte für die Zwecke  der Färberei und Druckerei. Unter Umstän  den ist es zweckmässig, ihnen geeignete Ver  dünnungsmittel und     Färbereihilfsprodukte     zuzusetzen.  



  Vorliegendes Patent bezieht sich auf ein  Verfahren zur Darstellung eines festen     Di-          azosalzes    durch Umsetzung einer     Diazosalz-          lösung    des     6-Chlor-2-amino-l-toluols    mit  einem     p-chlorbenzolsulfosauren    Salz oder  auch mit freier     p-Chlorbenzolsulfosäure.     



  Das so erhaltene feste     Diazosalz    stellt    ein blass gelbliches und in Wasser lösliches  Pulver dar.  



       Beispiel:     Eine     Diazolösung,    hergestellt aus 142  Teilen     6-Chlor-2-amino-l-toluol,    750 Teilen  15%iger Salzsäure und 70 Teilen     Natrium-          nitrit,    wird mit 258 Teilen     p-chlorbenzol-          sulfosaurem    Natrium verrieben.  



  Wenn die Umsetzung beendet ist, wird  das ausgeschiedene     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 diazotized nitroanilines, chloronitranilines, dichloroanilines, chloro- and nitrotoluidines, nitroaminophenol alkyl ethers and ortho-aminophenol acryl 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. Under certain circumstances it is useful to add suitable diluents and dyeing auxiliaries to them.



  The present patent relates to a method for the preparation of a solid diazo salt by reacting a diazo salt solution of 6-chloro-2-amino-1-toluene with a p-chlorobenzenesulfonic acid salt or with free p-chlorobenzenesulfonic acid.



  The solid diazo salt obtained in this way is a pale yellowish powder which is soluble in water.



       Example: A diazo solution, prepared from 142 parts of 6-chloro-2-amino-1-toluene, 750 parts of 15% hydrochloric acid and 70 parts of sodium nitrite, is triturated with 258 parts of sodium p-chlorobenzenesulfonate.



  When the reaction has ended, the precipitated diazo salt is filtered off and dried.

 

Claims (1)

PATENTANSPRUCH: Verfahren zur Darstellung eines festen Diazosalzes, dadurch gekennzeichnet, da.ss man eine Diazosalzlösung des 6-Chlor-2- amino-l-toluols mit p-Chlorbenzolsulfosäure oder einem ihrer Salze umsetzt. Das so erhaltene feste Diazosalz stellt ein blass gelbliches und in Wasser lösliches Pulver dar. Claim: Process for the preparation of a solid diazo salt, characterized in that a diazo salt solution of 6-chloro-2-amino-1-toluene is reacted with p-chlorobenzenesulfonic acid or one of its salts. The solid diazo salt obtained in this way is a pale yellowish powder which is soluble in water.
CH127942D 1926-02-12 1927-02-11 Process for the preparation of a solid diazo salt. CH127942A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE127942X 1926-02-12
CH126405T 1927-02-11

Publications (1)

Publication Number Publication Date
CH127942A true CH127942A (en) 1928-10-01

Family

ID=25710667

Family Applications (1)

Application Number Title Priority Date Filing Date
CH127942D CH127942A (en) 1926-02-12 1927-02-11 Process for the preparation of a solid diazo salt.

Country Status (1)

Country Link
CH (1) CH127942A (en)

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