AT18453B - Process for the preparation of a disazo dye for wool from o-o-diamido-p-phenolsulfonic acid. - Google Patents

Process for the preparation of a disazo dye for wool from o-o-diamido-p-phenolsulfonic acid.

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Publication number
AT18453B
AT18453B AT18453DA AT18453B AT 18453 B AT18453 B AT 18453B AT 18453D A AT18453D A AT 18453DA AT 18453 B AT18453 B AT 18453B
Authority
AT
Austria
Prior art keywords
diamido
wool
preparation
phenolsulfonic acid
disazo dye
Prior art date
Application number
Other languages
German (de)
Original Assignee
Hoechst Ag
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
Priority claimed from DE1900147880D external-priority patent/DE147880C/de
Application filed by Hoechst Ag filed Critical Hoechst Ag
Application granted granted Critical
Publication of AT18453B publication Critical patent/AT18453B/en

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  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Coloring (AREA)

Description

  

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   Osterreichische PATENTSCHRIFT Nr. 18453. FARBWERKE VORM. MEISTER LUCIUS & BRÜNING IN HÖCHST A. M. 



   Verfahren zur Darstellung eines Disazofarbstoffes für Wolle aus   o-o-Diamido-p-phenotsulfosäure.   



   Es wurde gefunden, dass man o-o-Diamidooxyverbindungen zur Darstellung von Azofarbstoffen verwenden kann ; sie lassen sich überraschenderweise leicht diazotieren ; die   entstehenden Tetrazodorivate   sind beständig und setzen sich leicht mit Aminen oder 
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   gegeben. Die Hildung   des Farbstoffes vollzieht sich in kurzer Zeit und dieser kann durch   Kochsalz aus der Lösung ausgeschieden werden. Er wird als blauschwarzes Pulver er-   halten,   @@ssen violette, wässerige Lösung   auf Zusatz von Mineralsäuren in Rot umschlägt. 
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**WARNUNG** Ende DESC Feld kannt Anfang CLMS uberlappen**.



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   Austrian PATENT LISTING No. 18453. FARBWERKE VORM. MASTER LUCIUS & BRÜNING IN HÖCHST A. M.



   Process for the preparation of a disazo dye for wool from o-o-diamido-p-phenosulfonic acid.



   It has been found that o-o-diamidooxy compounds can be used to prepare azo dyes; surprisingly, they can be diazotized easily; the resulting Tetrazodorivate are stable and set easily with amines or
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   given. The formation of the dye takes place in a short time and this can be eliminated from the solution with common salt. It is obtained as a blue-black powder, when a violet, aqueous solution turns red when mineral acids are added.
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** WARNING ** End of DESC field may overlap beginning of CLMS **.

Claims (1)

**WARNUNG** Ende CLMS Feld Kannt Anfang DESC uberlappen**. ** WARNING ** End of CLMS field may overlap beginning of DESC **.
AT18453D 1900-10-16 1904-01-13 Process for the preparation of a disazo dye for wool from o-o-diamido-p-phenolsulfonic acid. AT18453B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1900147880D DE147880C (en) 1900-10-16

Publications (1)

Publication Number Publication Date
AT18453B true AT18453B (en) 1904-11-25

Family

ID=5672305

Family Applications (1)

Application Number Title Priority Date Filing Date
AT18453D AT18453B (en) 1900-10-16 1904-01-13 Process for the preparation of a disazo dye for wool from o-o-diamido-p-phenolsulfonic acid.

Country Status (1)

Country Link
AT (1) AT18453B (en)

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