CH133101A - 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
CH133101A
CH133101A CH133101DA CH133101A CH 133101 A CH133101 A CH 133101A CH 133101D A CH133101D A CH 133101DA CH 133101 A CH133101 A CH 133101A
Authority
CH
Switzerland
Prior art keywords
production
containing azo
chromium
dye
azo dye
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 CH133101A publication Critical patent/CH133101A/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
    • 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
    • C09B45/01—Complex metal compounds of azo dyes characterised by the method of metallisation

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Coloring (AREA)

Description

  

  Verfahren zur Herstellung eines neuen chromhaltigen     Azofarbstoffes.       Es wurde gefunden, dass man einen neuen  chromhaltigen     Azofarbstoff    erhält, wenn man  das     Natriumsalz    des Farbstoffes aus diano  tiertem     4-Chlor-2-aminophenol    und     Barbitur-          säure    in Gegenwart von     Schwefelalkalien,     reduzierend wirkenden organischen Verbin  dungen und     Ätzalkalien    mit     Chromhydroxyd-          hydraten    behandelt.

   Der neue     Farbstoff    stellt  ein braunes Pulver dar, welches sich in  Wasser und verdünnter Natronlauge mit  gelborangeroter und in konzentrierter Schwe  felsäure mit     blassgelber    Farbe löst. Wolle  wird aus schwefelsaurem Bade echt orange  gefärbt.  



  <I>Beispiel:</I>  36 Teile kristallisiertes Schwefelnatrium,  46 Teile     Chromhydroxydpaste    mit 9,1      /o          Cr2O3,    20 Teile Natronlauge 30       Be,    3 Teile  Zucker und 100 Teile Wasser werden unter  Erwärmen gelöst und mit 15 Teilen des       Farbstoffes    aus dianotiertem     4-Chlor-2-amino-          phenol    und     Barbitursäure    verrührt.     Nwch       8stündigem Erwärmen auf 80--90   ist die       Chromierung    beendet, worauf der     Farbstoff     filtriert, mit Essigsäure neutral gestellt und  mit Kochsalz abgeschieden wird.



  Process for the production of a new chromium-containing azo dye. It has been found that a new chromium-containing azo dye is obtained if the sodium salt of the dye is treated with chromium hydroxide hydrates in the presence of alkaline sulfur, reducing organic compounds and caustic alkalis. The sodium salt of the dianoed 4-chloro-2-aminophenol and barbituric acid is treated.

   The new dye is a brown powder that dissolves in water and dilute sodium hydroxide solution with yellow-orange-red and in concentrated sulfuric acid with a pale yellow color. Wool is dyed real orange from sulfuric acid bath.



  <I> Example: </I> 36 parts of crystallized sodium sulphide, 46 parts of chromium hydroxide paste with 9.1 / o Cr2O3, 20 parts of sodium hydroxide solution 30 Be, 3 parts of sugar and 100 parts of water are dissolved with heating and dianotized with 15 parts of the dye 4-chloro-2-aminophenol and barbituric acid were mixed together. After 8 hours of warming to 80-90, the chromation is complete, whereupon the dye is filtered, neutralized with acetic acid and precipitated with sodium chloride.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines chrom- haltigen Azofarbatoffes, dadurch gekennzeich--. net, dass man das Natriumsalz des Farb= stoffes aus dianotiertem 4-Chlor-2-aminophenol und Barbitursäure in Gegenwart von Schwe- felalkalien, reduzierend wirkenden organi schen Verbindungen und Ätzalkalien mit Chromhydroxydhydraten behandelt. PATENT CLAIM: Process for the production of a chromium-containing azo carbate, thereby marked. The fact that the sodium salt of the dye made from dianotized 4-chloro-2-aminophenol and barbituric acid is treated with chromium hydroxide hydrates in the presence of sulfur alkalis, reducing organic compounds and caustic alkalis. Der neue Farbstoff stellt ein braunes Pulver dar, wel ches sich in Wasser und verdünnter Natron lauge mit gelborangeroter und in konzen trierter Schwefelsäure mit blassgelber Farbe löst. Wolle wird aus schwefelsaurem Bade echt orange gefärbt. The new dye is a brown powder which dissolves in water and dilute caustic soda with yellow-orange-red and in concentrated sulfuric acid with a pale yellow color. Wool is dyed real orange from sulfuric acid bath.
CH133101D 1927-08-13 1927-08-13 Process for the production of a new chromium-containing azo dye. CH133101A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH133101T 1927-08-13
CH130698T 1927-08-13

Publications (1)

Publication Number Publication Date
CH133101A true CH133101A (en) 1929-05-15

Family

ID=25711488

Family Applications (1)

Application Number Title Priority Date Filing Date
CH133101D CH133101A (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) CH133101A (en)

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