CH180407A - Process for the preparation of a chromium-containing azo dye. - Google Patents

Process for the preparation of a chromium-containing azo dye.

Info

Publication number
CH180407A
CH180407A CH180407DA CH180407A CH 180407 A CH180407 A CH 180407A CH 180407D A CH180407D A CH 180407DA CH 180407 A CH180407 A CH 180407A
Authority
CH
Switzerland
Prior art keywords
azo dye
chromium
preparation
containing azo
parts
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 CH180407A publication Critical patent/CH180407A/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
    • C09B45/00—Complex metal compounds of azo dyes
    • C09B45/02—Preparation from dyes containing in o-position a hydroxy group and in o'-position hydroxy, alkoxy, carboxyl, amino or keto groups
    • C09B45/14—Monoazo compounds
    • C09B45/16—Monoazo compounds containing chromium

Landscapes

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

Description

  

      Terfahren.    zur Herstellung eines     ehromlialtigen        Azofarbstoffes.       Es wurde gefunden,     dass    man einen       eliromlialtio,en        Azofarbstoff    herstellen kann,       t'     wenn man auf den     Azofarbstoff    der Formel  
EMI0001.0009     
         ehromabgebende    Mittel einwirken     lässt       Der     ehromhaltige        Azofarbstoff    stellt ein       violettschwarzes    Pulver dar,

   das sieh in  Wasser und in<B>10 %</B>     iger        Sodalösung    mit     rot-          stichigblauer,    in<B>10</B>     5#oiger    Natronlauge mit  violetter und in konzentrierter Schwefelsäure  mit     schwärzlieligrüner    Farbe löst. Er färbt  Wolle aus saurem Bade in     grünstichigblauen     echten Tönen.    <I>Beispiel:</I>       1,5,8    Teile     2-Oxynaphtlialin    werden in  überschüssiger Kalilauge gelöst und mit  einer wässerigen Paste von<B>25</B> Teilen       2-Diazo-l-oxynaplithalin-8-sulfons#Lure    ver  setzt.

   Man rührt bei<B>30</B> bis 40', bis die       D#iazoverbindung    verschwunden ist, verdünnt  hierauf mit dem doppelten Volumen Wasser  und filtriert den     seliwerlöslichen    Farbstoff  ab.  



  41,6, Teile des erhaltenen Farbstoffes wer  den in<B>800</B> Teilen Wasser suspendiert und  mit     2,00    Volumenteilen einer basischen       Chromsulfatlösung,    enthaltend 11,4 Teile       Cr--,Os,    24 Stunden rückfliessend     o#ekocht.     Nach dem Erkalten wird der abgeschiedene  Farbstoff filtriert und getrocknet.



      Driving. for the production of an Ehromlialtigen azo dye. It has been found that an eliromlialtio, en azo dye can be produced if one uses the azo dye of the formula
EMI0001.0009
         The Ehrom-containing azo dye is a purple-black powder,

   This can be seen in water and in <B> 10% </B> soda solution with reddish blue, in <B> 10 </B> 5% sodium hydroxide solution with violet and in concentrated sulfuric acid with blackish green color. He dyes wool from an acid bath in real greenish blue tones. <I> Example: </I> 1.5.8 parts of 2-oxynaphtlialin are dissolved in excess potassium hydroxide solution and mixed with an aqueous paste of <B> 25 </B> parts of 2-diazo-l-oxynaplithalin-8-sulfone # Lure ver.

   The mixture is stirred at 30 to 40 'until the diazo compound has disappeared, then diluted with twice the volume of water and the self-soluble dye is filtered off.



  41.6 parts of the dye obtained are suspended in 800 parts of water and refluxed for 24 hours with 2.00 parts by volume of a basic chromium sulfate solution containing 11.4 parts of Cr -, Os. After cooling, the deposited dye is filtered and dried.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines ehrom- haltigen Azofarbstoffes, dadurch gekenn zeichnet, dass man auf den Azofarbstoff der Formel EMI0002.0001 ehromabgebende Mittel einwirken lässt. Der ehrcimhaltige Azofarbstoff stellt eilt violettschwarzes Pulver dar, das sich in Was- ser und in 10%iger Sodalösung mit rotsti- chigblauer, PATENT CLAIM: Process for the production of an azo dye containing Ehrom, characterized in that the azo dye of the formula EMI0002.0001 allows honor donating agents to act. The azo dye containing Ehrcim is a violet-black powder, which in water and in 10% soda solution with a reddish blue, in<B>10</B> jo iger Natronlauge mit vio letter und in konzentrierter Sel)-wefelsäure mit schwärzlichgrüner Farbe löst. Er färbt Wolle aus saurem Bade in grünstichigblauen eellten Tönen. Dissolve in <B> 10 </B> yeast sodium hydroxide solution with vio letter and in concentrated sel) sulfuric acid with a blackish green color. He dyes wool from an acid bath in greenish blue, light tones.
CH180407D 1934-12-18 1934-12-18 Process for the preparation of a chromium-containing azo dye. CH180407A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH180407T 1934-12-18

Publications (1)

Publication Number Publication Date
CH180407A true CH180407A (en) 1935-10-31

Family

ID=4429971

Family Applications (1)

Application Number Title Priority Date Filing Date
CH180407D CH180407A (en) 1934-12-18 1934-12-18 Process for the preparation of a chromium-containing azo dye.

Country Status (1)

Country Link
CH (1) CH180407A (en)

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