CH127935A - Process for the preparation of a solid diazo salt. - Google Patents

Process for the preparation of a solid diazo salt.

Info

Publication number
CH127935A
CH127935A CH127935DA CH127935A CH 127935 A CH127935 A CH 127935A CH 127935D A CH127935D A CH 127935DA CH 127935 A CH127935 A CH 127935A
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 CH127935A publication Critical patent/CH127935A/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,          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 Ver  dünnungsmittel und     Färbereihilfsprodukte    zu  zusetzen.  



  Vorliegendes Patent bezieht sich auf ein  Verfahren zur Darstellung eines festen     Diazo-          salzes    durch Umsetzung einer     Diazosalzlösung     des     4-Nitro-2-amino-l-anisols    mit einem     p-          chlorbenzolsulfosaureii    Salz oder auch mit  freier     p-Chlorbeilzolsulfosäure.     



  Das so erhaltene feste     Diazosalz    stellt  ein fleischfarbenes und in Wasser lösliches  Pulver dar.    <I>Beispiel.</I>  Eine     Diazolösung,    hergestellt aus<B>168</B>  Teilen     4-Nitro-2-amino-l-anisol,   <B>750</B> Teilen  <B>15</B>     "/oiger    Salzsäure und<B>70</B> Teilen     Natrium-          iiitrit,    wird mit einer warmen Lösung von       255    Teilen     p-chloi-beiizolsulfosaurem    Kalium  vermischt.  



  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 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 4-nitro-2-amino-1-anisole with a p-chlorobenzenesulphonic acid salt or with free p-chlorobeilzenesulphonic acid.



  The solid diazo salt obtained in this way is a flesh-colored powder which is soluble in water. <I> Example. </I> A diazo solution made from <B> 168 </B> parts of 4-nitro-2-amino-l-anisole, <B> 750 </B> parts of <B> 15 </B>% hydrochloric acid and <B> 70 </B> parts of sodium iitrite are mixed with a warm solution of 255 parts of p-chloi-beiizolsulfosaurem potassium .



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

Claims (1)

PATENTANSFRUCH: Verfahren zur Darstellung eines festen Diazosalzes, dadurch gekennzeichnet, dass man eine Diazosalzlösung des 4-Nitro-2-amino-l- anisols mit p-Chlorbenzolsulfosäure oder einem ihrer Salze umsetzt. Das so erhaltene feste Diazosalz stellt ein fleischfarbenes uud in Wasser lösliches Pulver dar. PATENT REQUEST: Process for the preparation of a solid diazo salt, characterized in that a diazo salt solution of 4-nitro-2-amino-l-anisole is reacted with p-chlorobenzenesulphonic acid or one of its salts. The solid diazo salt obtained in this way is a flesh-colored powder that is soluble in water.
CH127935D 1926-02-12 1927-02-11 Process for the preparation of a solid diazo salt. CH127935A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE127935X 1926-02-12
CH126405T 1927-02-11

Publications (1)

Publication Number Publication Date
CH127935A true CH127935A (en) 1928-09-17

Family

ID=25710660

Family Applications (1)

Application Number Title Priority Date Filing Date
CH127935D CH127935A (en) 1926-02-12 1927-02-11 Process for the preparation of a solid diazo salt.

Country Status (1)

Country Link
CH (1) CH127935A (en)

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