CH165040A - Process for the production of a new azo dye. - Google Patents

Process for the production of a new azo dye.

Info

Publication number
CH165040A
CH165040A CH165040DA CH165040A CH 165040 A CH165040 A CH 165040A CH 165040D A CH165040D A CH 165040DA CH 165040 A CH165040 A CH 165040A
Authority
CH
Switzerland
Prior art keywords
production
azo dye
new azo
new
yellow
Prior art date
Application number
Other languages
German (de)
Inventor
Gesellschaft Fuer Chemis Basel
Original Assignee
Chem Ind Basel
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 Chem Ind Basel filed Critical Chem Ind Basel
Publication of CH165040A publication Critical patent/CH165040A/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
    • C09B29/00—Monoazo dyes prepared by diazotising and coupling
    • C09B29/02—Monoazo dyes prepared by diazotising and coupling from diazotised o-amino-hydroxy compounds

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Coloring (AREA)
  • Paper (AREA)

Description

  

  Zusatzpatent zum Hauptpatent     Nr.   <B>163008.</B>    Verfahren zur Herstellung eines netten     Azofarbstoffes.       Es wurde gefunden,     dass    man einen neuen       Azofarbstoff    erhält, wenn man     diazotiertes          5-Niti-o-2-.iinitio-l-phetiol    mit     (o-Oxi#*ithyl-          anifin    vereinigt.  



  Der neue Farbstoff bildet ein braunes  Pulver, das in Wasser unlöslich ist, sich aber  in     Essigsi%tireäthylester    mit gelbroter Farbe  löst.<B>Er</B> färbt nach geeigneter     Verpastung          Acetatseide    in gelbroten Tönen, die sich durch  ihre Reinheit     atiszeiehnen.       <I>Beispiel:

  </I>    15,4 Teile     5-Nitro-2-amiiio-l-phetiol        wer-          (len    mit<B>300</B> Teilen Wasser     verinahlen        und     die erhaltene Suspension mit<B>25</B> Teilen     kon-          zentrierter    Salzsäure und<B>7</B> Teilen     Natrium-          nitrit        diazotiert.    Die so erhaltene     Diazolösung     vereinigt man mit einer Lösung von<B>13.7</B>    Teilen     w-Oxäthylanilin    in verdünnter Salz  säure.

   Der nach längerem Rühren     ausgeschie.-          dene    Farbstoff wird filtriert und gewaschen.



  Additional patent to main patent no. <B> 163008. </B> Process for the production of a nice azo dye. It has been found that a new azo dye is obtained when diazotized 5-Niti-o-2-.iinitio-1-phetiol is combined with (o-Oxi # * ithylanifine.



  The new dye forms a brown powder that is insoluble in water, but dissolves in ethyl acetate with a yellow-red color. <B> It </B>, when suitably pasted, dyes acetate silk in yellow-red shades, which are distinguished by their purity. <I> example:

  15.4 parts of 5-nitro-2-amiiio-l-phetiol are ground with 300 parts of water and the suspension obtained is mixed with 25 parts of con - Centered hydrochloric acid and <B> 7 </B> parts of sodium nitrite diazotized The diazo solution thus obtained is combined with a solution of <B> 13.7 </B> parts of w-oxethylaniline in dilute hydrochloric acid.

   The dye which separates out after prolonged stirring is filtered and washed.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines neuen Azofarbstoffes, dadurch gekennzeichnet, dass man diazotiertes 5-Nitro-2-amirio-l-phenol mit cü-Oxäthylaniliii vereinigt. Der neue Farbstoff bildet ein braunes Pulver, das in Wasser unlöslich ist, sich aber in Essigsäureäthylester mit gelbroter Farbe löst. Er färbt nach geeigneter Verpastung Acetatseide in gelbroten Tönen, die sich durch ihre Reinheit auszeichnen. Claim: Process for the production of a new azo dye, characterized in that diazotized 5-nitro-2-amirio-1-phenol is combined with cü-Oxäthylaniliii. The new dye forms a brown powder that is insoluble in water, but dissolves in ethyl acetate with a yellow-red color. After suitable pasting, it dyes acetate silk in yellow-red tones, which are characterized by their purity.
CH165040D 1932-07-08 1932-07-08 Process for the production of a new azo dye. CH165040A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH165040T 1932-07-08
CH163008T 1932-07-08

Publications (1)

Publication Number Publication Date
CH165040A true CH165040A (en) 1933-10-31

Family

ID=25717685

Family Applications (1)

Application Number Title Priority Date Filing Date
CH165040D CH165040A (en) 1932-07-08 1932-07-08 Process for the production of a new azo dye.

Country Status (1)

Country Link
CH (1) CH165040A (en)

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