CH163008A - Process for the production of a new azo dye. - Google Patents

Process for the production of a new azo dye.

Info

Publication number
CH163008A
CH163008A CH163008DA CH163008A CH 163008 A CH163008 A CH 163008A CH 163008D A CH163008D A CH 163008DA CH 163008 A CH163008 A CH 163008A
Authority
CH
Switzerland
Prior art keywords
azo dye
production
new azo
new
red
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 CH163008A publication Critical patent/CH163008A/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)

Description

  

  Verfahren zur Herstellung eines neuen     Azofarbstoffes..       Es     wurde    gefunden, dass man einen neuen       Azofarbstoff    erhält,     wenn    man     diazotiertes          5-Nitro-2-amino-l-phenol    mit     [1-(uo-Ogäthyl)'-          amino]-2-methogy-5-methylbenzol    vereinigt.  



  Der neue Farbstoff bildet ein violettes  Pulver, das in Wasser     unlöslich    ist, sich aber  in     Essigsäureäthylester    mit rotvioletter Farbe  löst. Er färbt nach geeigneter     Verpastung          Acetatseide    in rotvioletten Tönen, die sich  durch ihre Reinheit auszeichnen.  



  <I>Beispiel:</I>  15,4 Teile     5-Nitro-2-amino-l-phenol    wer  den mit 300 Teilen Wasser vermahlen     und     die erhaltene Suspension mit 25 Teilen kon  zentrierter Salzsäure und 7 Teilen Natrium  nitrit     diazotiert.    Die so erhaltene     Diazo-          lösung    vereinigt man     mit    einer Lösung von  18,1 Teilen [1-(cv-Ogäthyl)-amino]-2-meth-         ogy-5-methylbenzol    in verdünnter Salzsäure.  Der nach längerem Rühren ausgeschiedene  Farbstoff     wird    filtriert und gewaschen.



  Process for the preparation of a new azo dye .. It has been found that a new azo dye is obtained if diazotized 5-nitro-2-amino-1-phenol with [1- (uo-Ogäthyl) '- amino] -2-methogy -5-methylbenzene combined.



  The new dye forms a purple powder, which is insoluble in water, but dissolves in ethyl acetate with a red-purple color. After suitable pasting, it dyes acetate silk in red-violet tones, which are characterized by their purity.



  <I> Example: </I> 15.4 parts of 5-nitro-2-amino-1-phenol are ground with 300 parts of water and the suspension obtained is diazotized with 25 parts of concentrated hydrochloric acid and 7 parts of sodium nitrite. The diazo solution thus obtained is combined with a solution of 18.1 parts of [1- (cv-Ogäthyl) -amino] -2-methoxy-5-methylbenzene 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-amino-l-phenol mit [1-(c)-Ogäthyl)-aminol-2-methogy-5-me- thylbenzol vereinigt. Der neue Farbstoff bildet ein violettes Pulver, das in Wasser unlöslich ist, sich aber in Essigsäureäthylester mit rotvioletter Farbe löst. Claim: Process for the preparation of a new azo dye, characterized in that diazotized 5-nitro-2-amino-1-phenol is combined with [1- (c) -Ogäthyl) -aminol-2-methogy-5-methylbenzene . The new dye forms a purple powder, which is insoluble in water, but dissolves in ethyl acetate with a red-purple color. Er färbt nach geeigneter Verpastung Acetatseide in rotvioletten Tönen, die sich durch ihre Reinheit auszeichnen. After suitable pasting, it dyes acetate silk in red-violet tones, which are characterized by their purity.
CH163008D 1932-07-08 1932-07-08 Process for the production of a new azo dye. CH163008A (en)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
CH163008A true CH163008A (en) 1933-07-31

Family

ID=4416122

Family Applications (1)

Application Number Title Priority Date Filing Date
CH163008D CH163008A (en) 1932-07-08 1932-07-08 Process for the production of a new azo dye.

Country Status (1)

Country Link
CH (1) CH163008A (en)

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