CH132197A - Process for producing a solid diazoazo compound. - Google Patents

Process for producing a solid diazoazo compound.

Info

Publication number
CH132197A
CH132197A CH132197DA CH132197A CH 132197 A CH132197 A CH 132197A CH 132197D A CH132197D A CH 132197DA CH 132197 A CH132197 A CH 132197A
Authority
CH
Switzerland
Prior art keywords
solid
compound
producing
diazoazo
methylbenzene
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 CH132197A publication Critical patent/CH132197A/en

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

Description

  

  Verfahren zur Herstellung einer festen     Diazoazoverbindung.       Vorliegendes Patent bezieht sich auf ein  Verfahren zur Herstellung einer festen     Diazo-          azoverbindung,    das dadurch gekennzeichnet  ist, dass man aus einer Lösung der     Diazover-          bindung    des     Aminoazokörpers    4-Nitro-2-me       thylbenzol-azo-3-amino-4-äthoxy-l-methylben-          zol    durch Zusatz von Chlorzink ein festes       Chlorzinkdoppelsalz    der Formel  
EMI0001.0010     
    abscheidet.

    Die so erhaltene feste     Diazoazoverbindung     ist ein rotbraunes Pulver, das sich in Wasser  mit bräunlicher Farbe löst.  



       Beispiel:     Eine aus 314 Teilen des     p-Aminoazo-          körpers        4-Nitro-2-methylbenzol-azo-3-amino-          4-äthoxy-l-methylbenzol    hergestellte     Dia-          zoniumchloridlösung    wird mit Hilfe von 100  Teilen Chlorzink und einer genügenden Menge  Kochsalz gefällt. Das abgeschiedene Chlorzink-         doppelsalz    wird getrocknet und gleichmässig  mit geeigneten Verdünnungsmitteln gemischt.



  Process for producing a solid diazoazo compound. The present patent relates to a process for the preparation of a solid diazo-azo compound, which is characterized in that 4-nitro-2-methylbenzene-azo-3-amino-4-ethoxy-4-nitro-2-methylbenzene-azo-3-amino-4-ethoxy compound is obtained from a solution of the diazo compound of the aminoazo L-methylbenzene is a solid zinc chloride double salt of the formula by adding zinc chloride
EMI0001.0010
    separates.

    The solid diazoazo compound thus obtained is a red-brown powder which dissolves in water with a brownish color.



       Example: A diazonium chloride solution prepared from 314 parts of the p-aminoazo body 4-nitro-2-methylbenzene-azo-3-amino-4-ethoxy-1-methylbenzene is precipitated with the help of 100 parts of zinc chloride and a sufficient amount of common salt . The separated zinc chloride double salt is dried and evenly mixed with suitable thinners.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung einer festen Diazoazoverbindung, dadurch gekennzeichnet, dass man aus einer Lösung der Diazoverbin- dung des Aminoazokörpers 4-Nitro-2-methyl- benzol-azo-3-amino-4-äthoxy-l-methylbenzol durch Zusatz von Chlorzink ein festes Chlor zinkdoppelsalz der Formel EMI0001.0026 abscheidet. Die so erhaltene feste Diazoazoverbindung ist beständig. Sie ist ein rotbraunes Pulver, das sich in Wasser mit bräunlicher Farbe löst. Claim: A process for the production of a solid diazoazo compound, characterized in that 4-nitro-2-methylbenzene-azo-3-amino-4-ethoxy-1-methylbenzene is converted from a solution of the diazo compound of the aminoazo body by adding zinc chloride a solid chlorine zinc double salt of the formula EMI0001.0026 separates. The solid diazoazo compound thus obtained is stable. It is a red-brown powder that dissolves in water with a brownish color.
CH132197D 1926-10-05 1927-10-03 Process for producing a solid diazoazo compound. CH132197A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE132197X 1926-10-05
CH130424T 1927-10-03

Publications (1)

Publication Number Publication Date
CH132197A true CH132197A (en) 1929-03-31

Family

ID=25711430

Family Applications (1)

Application Number Title Priority Date Filing Date
CH132197D CH132197A (en) 1926-10-05 1927-10-03 Process for producing a solid diazoazo compound.

Country Status (1)

Country Link
CH (1) CH132197A (en)

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