CH90300A - Process for the preparation of a soluble chromium compound of an azo dye. - Google Patents

Process for the preparation of a soluble chromium compound of an azo dye.

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Publication number
CH90300A
CH90300A CH90300DA CH90300A CH 90300 A CH90300 A CH 90300A CH 90300D A CH90300D A CH 90300DA CH 90300 A CH90300 A CH 90300A
Authority
CH
Switzerland
Prior art keywords
sep
azo dye
preparation
chromium compound
soluble chromium
Prior art date
Application number
Other languages
German (de)
Inventor
Farbenfabriken Vorm Friedr Co
Original Assignee
Farbenfab Vorm Bayer F & Co
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 Farbenfab Vorm Bayer F & Co filed Critical Farbenfab Vorm Bayer F & Co
Publication of CH90300A publication Critical patent/CH90300A/en

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Description

  

  Verfahren zur Darstellung einer löslichen     Chrornyerbindung    eines     Azofarbstoff-,.            -.K--          Es    wurde gefunden,     dass    man zu einer neuen  wertvollen wasserlöslichen     Chromverbindun.--          gelangt,

      wenn     inan        den        Azofarbstoff    aus     dia-          zotierter        Anthranilsäure    und     2-Naphtylaiiiiii-          7-sulfosäure        duruh        Koeben    mit     Chromoxydsalz     in die wasserlösliche     Clirorii%,erbindung    um-'  wandelt.  



  <I>Beispiel:</I>  <B>137</B>     Gewichlsteile        Ailtlir.ti)ils:litire    werden       diazotiert    und die     Diazoverbindung        init          223        Gewiehtsteilen        2-Naplitylainin-7-sull'o-          säure    bei     Gegenwart    von     Natriuniauetat        zuin          A7ofarl)slot'r    vereinigt.

   Ist die     K_#upplung    be  endet, so wird der Farbstoff durch     Aussalzen     mit     Koelisalz    isoliert und in wässeriger Lö  sung     init   <B>31-5</B>     Gewichtsteilen        Chronifluorifl     so lange     gehocht,    bis die gelbbraune Farbe  der     Lösum,-    nach rotviolett umgeschlagen ist,  ein Punkt, der etwa nach drei bis vier Stun  den erreicht wird.

   Alsdann wird die     Lösun-          durch    Filtration von     Verunreinigungen    be  freit, die     Chroniverbindun-    des Farbstoffes    durch     Aussalzen        init    Kochsalz abgeschieden,       eD     und     -etroehnet.     



       .Man        hann    das Produkt     naeh    den üblichen       behannten    Methoden     init    Hilfe eines Sub  strates in einen Farblack überführen.  



  Man erhält so ein klares Rotviolett von       atisgezeiebnüter        M-asser-,    Kalk-     und        Lielit-          e(-litlieii.  



  Process for the preparation of a soluble chromium compound of an azo dye. -.K-- It has been found that a new valuable water-soluble chromium compound can be obtained.

      when inan the azo dye from diazotized anthranilic acid and 2-naphtylaiiiiiii-7-sulfonic acid is converted into the water-soluble compound by means of chromium oxide salt.



  <I> Example: </I> <B> 137 </B> parts by weight of Ailtlir.ti) ils: litire are diazotized and the diazo compound with 223 parts by weight of 2-naplitylainin-7-sull'oic acid in the presence of sodium acetate in A7ofarl ) slot'r united.

   When the coupling is complete, the dye is isolated by salting out with Koeli salt and raised in an aqueous solution with <B> 31-5 </B> parts by weight of Chronifluorifl until the yellow-brown color of the solution has turned red-violet is, a point that is reached after about three to four hours.

   Then the solution is freed of impurities by filtration, the chronological compounds of the dye are separated out by salting out with common salt, eD and dry.



       The product can be converted into a colored lacquer using the usual hackneyed methods with the help of a substrate.



  In this way a clear red-violet of atisgezeiebnüter M-aster-, Kalk- and Lielit- e (-litlieii.

Claims (1)

EMI0001.0059 <B>PATENTANSPRUCH:</B> <tb> Verfahren <SEP> zur <SEP> Darstellun- <SEP> einer <SEP> rot violetten <SEP> lösliehen <SEP> Chroniverbindung, <SEP> eines <tb> Azofarbstoffes, <SEP> die <SEP> init <SEP> Hilfe <SEP> von <SEP> Substraten <tb> Farblaehe <SEP> von <SEP> aus#,-ezeiebiieter <SEP> Wasser-, <SEP> Kalk und <SEP> Lielieelitbeit <SEP> liefert, <SEP> darin <SEP> bestehend, <tb> (lass <SEP> inan <SEP> den <SEP> Azofarbstoff <SEP> aus <SEP> diazotierter <tb> Aiitlii#aiiiis:iiii#e <SEP> und <SEP> 2-Naplitylaiiiiii-7-stilfo säure <SEP> dureh <SEP> Koehen <SEP> mit <SEP> Chronioxydsalz <SEP> in <tb> seine <SEP> was-erlöslielie <SEP> Chroinverl)indtiii#- <SEP> über führt. EMI0001.0059 <B> PATENT CLAIM: </B> <tb> Method <SEP> for <SEP> display - <SEP> a <SEP> red violet <SEP> detachable <SEP> chronicle connection, <SEP> one <tb> azo dye, <SEP> the <SEP> init <SEP> help <SEP> of <SEP> substrates <tb> color <SEP> from <SEP> from #, - ezeiebiieter <SEP> water, <SEP> lime and <SEP> Lielieelitbeit <SEP> supplies, <SEP> consists of <SEP>, <tb> (leave <SEP> in <SEP> the <SEP> azo dye <SEP> from <SEP> diazotized <tb> Aiitlii # aiiiis: iiii # e <SEP> and <SEP> 2-Naplitylaiiiiii-7-stilfo acid <SEP> by <SEP> Koehen <SEP> with <SEP> Chronioxydsalz <SEP> in <tb> his <SEP> what-erlöslielie <SEP> Chroinverl) indtiii # - <SEP> over leads.
CH90300D 1919-09-10 1920-08-23 Process for the preparation of a soluble chromium compound of an azo dye. CH90300A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE90300X 1919-09-10

Publications (1)

Publication Number Publication Date
CH90300A true CH90300A (en) 1921-08-16

Family

ID=5643156

Family Applications (1)

Application Number Title Priority Date Filing Date
CH90300D CH90300A (en) 1919-09-10 1920-08-23 Process for the preparation of a soluble chromium compound of an azo dye.

Country Status (1)

Country Link
CH (1) CH90300A (en)

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