CH110409A - Preparation suitable for dye production. - Google Patents

Preparation suitable for dye production.

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Publication number
CH110409A
CH110409A CH110409DA CH110409A CH 110409 A CH110409 A CH 110409A CH 110409D A CH110409D A CH 110409DA CH 110409 A CH110409 A CH 110409A
Authority
CH
Switzerland
Prior art keywords
preparation suitable
dye production
dye
production
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 CH110409A publication Critical patent/CH110409A/en

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Description

  

  Zur     Far        bstoffher    Stellung geeignetes     Präparat.       Es wurde die überraschende Beobachtung  gemacht,     (la.ss        konzentrierte    Mischungen des       Nitrosaminalkalisa.lzes    aus     o-Nitroanilin    und  dem     Natronsa,lz    von     1-(2.5-Dichlorphenyl)-          3-metliyl-5-pyrazolon.    das eine kupplungs  fähige     11ethylenbruppe        enthält,    Präparate  darstellen,

   welche eine     ausgezeichnete    Halt       barkeit    besitzen     und    infolgedessen für .die  Darstellung von     Farbstoffen    in     verschiedener     Hinsicht, zum Beispiel in der Druckerei,  w     ieht4g    sind.  



  <I>Beispiel:</I>  32,8 Teile     2.5-Dichlorphenylmetliylpyr-          azolon    74      /ig    werden mit 9,3 Teilen     Xtz-          natron    94     %ig    und 42,4 Teilen einer Paste  des     Nitrosa.minnatriurnsalzes    von o-Nitroani-         lin,    35,8 % Base und 3 % freies     Ätznatron     enthaltend, in .einer Kugelmühle zu einem  homogenen Brei     veimahlen.    Man erhält eine  braungelbe, in Wasser leicht lösliche Paste.



  Preparation suitable for dye production. The surprising observation was made, (let us concentrate mixtures of the nitrosamine alkali from o-nitroaniline and soda, from 1- (2.5-dichlorophenyl) -3-methyl-5-pyrazolone. Which contains a coupling-capable ethylene group, Represent preparations,

   which have an excellent shelf life and as a result are ideal for the representation of dyes in various respects, for example in printing.



  <I> Example: </I> 32.8 parts of 2,5-dichlorophenylmetliylpyrazolon 74 / ig are mixed with 9.3 parts of xtic soda 94% and 42.4 parts of a paste of the nitrosa / minatrium salt of o-nitroaniline Containing 35.8% base and 3% free caustic soda, veimahlen in .ein ball mill to a homogeneous pulp. A brown-yellow paste which is easily soluble in water is obtained.

Claims (1)

PATENTANSPRUCH: Zur Farbstoffherstellung geeignetes Prä parat, gekennzeichnet durch eine konzen trierte Mischung von 1-(2 . 5-Dichlorphenyl)- 3-methyl-5-pyrazolon-Natriums,alz, das eine liuppluiigsfähige Methylengruppe enthält und Nitrosaminalkalisalz aus o-Nitraanilin. PATENT CLAIM: A preparation suitable for dye production, characterized by a concentrated mixture of 1- (2. 5-dichlorophenyl) -3-methyl-5-pyrazolone sodium, which contains a methylene group capable of coupling and nitrosamine potassium salt from o-nitraaniline.
CH110409D 1923-06-11 1924-06-05 Preparation suitable for dye production. CH110409A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE110409X 1923-06-11
CH109482T 1924-06-05

Publications (1)

Publication Number Publication Date
CH110409A true CH110409A (en) 1925-06-01

Family

ID=25707572

Family Applications (1)

Application Number Title Priority Date Filing Date
CH110409D CH110409A (en) 1923-06-11 1924-06-05 Preparation suitable for dye production.

Country Status (1)

Country Link
CH (1) CH110409A (en)

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