CH110413A - Preparation suitable for dye production. - Google Patents

Preparation suitable for dye production.

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Publication number
CH110413A
CH110413A CH110413DA CH110413A CH 110413 A CH110413 A CH 110413A CH 110413D A CH110413D A CH 110413DA CH 110413 A CH110413 A CH 110413A
Authority
CH
Switzerland
Prior art keywords
preparation suitable
dye production
diacetoacetyl
dichloroaniline
nitrosamine
Prior art date
Application number
Other languages
German (de)
Inventor
Griesheim-Elektron Chem Fabrik
Original Assignee
Griesheim Elektron Chem Fab
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 Griesheim Elektron Chem Fab filed Critical Griesheim Elektron Chem Fab
Publication of CH110413A publication Critical patent/CH110413A/en

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Description

  

  Zur     Farbstoffherstellung    geeignetes Präparat.    Es wurde die überraschende Beobachtung  gemacht, dass konzentrierte Mischungen des       Nitrosaminalkalisalzes    aus     2#5-Dichloranilin       und dem     Natronsalz    von     Diacetoacetyl-o-          tolidin    von der Formel:  
EMI0001.0007     
    das eine kupplungsfähige     Methylengruppe     enthält, Präparate darstellen, welche eine  ausgezeichnete Haltbarkeit besitzen und in  folgedessen für die Darstellung von Farb  stoffen in verschiedener Hinsicht,. zum Bei  spiel in der Druckerei, wichtig sind.  



  <I>Beispiel:</I>  38 Teile     Diacetoacetyl-o-tolidin    werden       mit        16,8        Teilen        Ätznatron        94        %ig,        79,4        Tei-          len    einer Paste des     Nitrosaminnatriumsalzes          von    2     #        5-Dichloranilin,        40,8        %        Base        enthal-          tend,

      und 15 Teilen Wasser in der Kugel  mühle zu einem homogenen Brei vermahlen.    Man erhält eine     schwach    bräunliche, in Wasser  leicht lösliche Paste.



  Preparation suitable for dye production. The surprising observation was made that concentrated mixtures of the nitrosamine alkali salt of 2 # 5-dichloroaniline and the sodium salt of diacetoacetyl-o-tolidine of the formula:
EMI0001.0007
    which contains a couplable methylene group, represent preparations which have an excellent shelf life and consequently for the representation of dyes in various respects. for example in the print shop.



  <I> Example: </I> 38 parts of diacetoacetyl-o-tolidine are contained with 16.8 parts of 94% caustic soda, 79.4 parts of a paste of the nitrosamine sodium salt of 2 # 5-dichloroaniline, 40.8% base - tend,

      and 15 parts of water in a ball mill to a homogeneous pulp. A slightly brownish paste which is easily soluble in water is obtained.

Claims (1)

PATENTANSPRUCH: Zur Farbstoffherstellung geeignetes Prä parat, gekennzeichnet durch eine konzen trierte Mischung von. Diacetoacetyl-o-tolidin- Natriumsalz, das eine kupplungsfähige Me- thylengruppe enthält, und Nitrosaminalkali- salz von 2 # 5-Dichloranilin. PATENT CLAIM: A preparation suitable for dye production, characterized by a concentrated mixture of. Diacetoacetyl-o-tolidine sodium salt, which contains a methylene group capable of coupling, and nitrosamine alkali salt of 2 # 5-dichloroaniline.
CH110413D 1923-06-11 1924-06-05 Preparation suitable for dye production. CH110413A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE110413X 1923-06-11
CH109482T 1924-06-05

Publications (1)

Publication Number Publication Date
CH110413A true CH110413A (en) 1925-06-01

Family

ID=25707576

Family Applications (1)

Application Number Title Priority Date Filing Date
CH110413D CH110413A (en) 1923-06-11 1924-06-05 Preparation suitable for dye production.

Country Status (1)

Country Link
CH (1) CH110413A (en)

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