CH133106A - Process for the production of a new chromium-containing azo dye. - Google Patents

Process for the production of a new chromium-containing azo dye.

Info

Publication number
CH133106A
CH133106A CH133106DA CH133106A CH 133106 A CH133106 A CH 133106A CH 133106D A CH133106D A CH 133106DA CH 133106 A CH133106 A CH 133106A
Authority
CH
Switzerland
Prior art keywords
dye
blue
production
azo dye
containing azo
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 CH133106A publication Critical patent/CH133106A/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

  

      Zusatzpatent        zum    Hauptpatent Nr. 130698.    Verfahren zur Herstellung eines neuen     ehromhaltigen        Azofarbstoffes.       Es wurde gefunden, dass man einen neuen       chromhaltigen        Azofarbstoff    erhält, wenn man  das     Natriumsalz    'des Farbstoffes aus diano  tiertem     5-Nitro-2-aminophenol    und     2-Phenyl-          amino-5-oxynaphtalin-7-sulfosäure    in Gegen  wart von Schwefelalkalien und mehrwertigen  Alkoholen reit     Chromhydroxydhydraten    be  handelt.

   Der neue     Farbstoff    stellt ein blau  schwarzes Pulver dar, welches sich in Wasser  und in konzentrierter Schwefelsäure mit blau  violetter Farbe löst. Wolle wird aus schwefel  saurem Bade echt blaugrau gefärbt.  



  <I>Beispiel:</I>  30 Teile einer     Farbstoffpaste    des     Dina-          triumsalzes    des Farbstoffes aus     ä-Nitro-2-di-          azophenolund        2-Pherrylamirro-        5-oxyrraphtalin-          7-sulfosäure    werden in eine Mischung von 36  Teilen kristallisiertem Schwefelnatrium, 46  Teilen     Chromhydroxydpaste    mit 9,1  /o     Cr    2<B>03</B>  und 3 Teilen Glykol eingetragen. Man er  wärmt langsam auf 90-100 o und belässt 16    Stunden bei dieser Temperatur.

   Dann wird  mit Wasser auf 500 Teile verdünnt, filtriert,  mit Kochsalz versetzt und mit verdünnter  Essigsäure abgeschieden.



      Additional patent to main patent No. 130698. Process for the production of a new azo dye containing Ehrom. It has been found that a new chromium-containing azo dye is obtained if one uses the sodium salt of the dye from diano-based 5-nitro-2-aminophenol and 2-phenyl-amino-5-oxynaphthalene-7-sulfonic acid in the presence of alkaline sulfur and polyvalent salts Alcohols are treated with chromium hydroxide hydrates.

   The new dye is a blue-black powder that dissolves in water and in concentrated sulfuric acid with a blue-violet color. Wool is dyed really blue-gray from acidic sulfuric baths.



  <I> Example: </I> 30 parts of a dye paste of the dinatrium salt of the dye from α-nitro-2-di-azophenol and 2-pherrylamirro-5-oxyrraphthalene-7-sulfonic acid are dissolved in a mixture of 36 parts of crystallized sodium sulfur, 46 parts of chromium hydroxide paste with 9.1 / o Cr 2 03 and 3 parts of glycol entered. It is slowly warmed to 90-100 o and left at this temperature for 16 hours.

   Then it is diluted to 500 parts with water, filtered, mixed with sodium chloride and precipitated with dilute acetic acid.

Claims (1)

<B>PATENTANSPRUCH:</B> Verfahren zur Herstellung eines chrom- haltigen Azofarbstoffes, dadurch gekennzeich net, dass man das Natriumsalz des Farb stoffes aus diazotiertern 5-Nitro-2-aminophe- nol und 2-Phenylamino-5-oxyrraphtalirr-7-sul- fosäure in Gegenwart von Schwefelalkalien und mehrwertigen Alkoholen mit Chrom hydroxydhydraten behandelt. Der neue Farb stoff stellt ein blauschwarzes Pulver dar, wel ches sich in Wasser und in konzentrierter Schwefelsäure mit blauvioletter Farbe löst. Wolle wird aus schwefelsaurem Bade echt blaugrau gefärbt. <B> PATENT CLAIM: </B> Process for the production of a chromium-containing azo dye, characterized in that the sodium salt of the dye is obtained from diazotized 5-nitro-2-aminophenol and 2-phenylamino-5-oxyrraphthalene-7 -sulfonic acid treated with chromium hydroxide hydrates in the presence of alkaline sulfur and polyhydric alcohols. The new dye is a blue-black powder that dissolves in water and in concentrated sulfuric acid with a blue-violet color. Wool is dyed really blue-gray from sulfuric acid bath.
CH133106D 1927-08-13 1927-08-13 Process for the production of a new chromium-containing azo dye. CH133106A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH130698T 1927-08-13
CH133106T 1927-08-13

Publications (1)

Publication Number Publication Date
CH133106A true CH133106A (en) 1929-05-15

Family

ID=25711493

Family Applications (1)

Application Number Title Priority Date Filing Date
CH133106D CH133106A (en) 1927-08-13 1927-08-13 Process for the production of a new chromium-containing azo dye.

Country Status (1)

Country Link
CH (1) CH133106A (en)

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