CH130156A - 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
CH130156A
CH130156A CH130156DA CH130156A CH 130156 A CH130156 A CH 130156A CH 130156D A CH130156D A CH 130156DA CH 130156 A CH130156 A CH 130156A
Authority
CH
Switzerland
Prior art keywords
production
azo dye
containing azo
ehrom
blue
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 CH130156A publication Critical patent/CH130156A/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

  

  Verfahren zur Herstellung eines neuen     ehromhaltigen        Azofarbstoffes.       Es wurde gefunden,     dass    man einen neuen       chrornhaltigen        Azofarbstoff    erhält, wenn man  den Farbstoff, welcher aus     diazotiertem        6-          Sulfo-4-chlor-2-amino-l-pheriol        und        P-Naph-          thylamin    entsteht, mit einem organischen  Chromsalz in Gegenwart einer organischen  Säure behandelt.

   Der erhaltene     ehromhaltige     Farbstoff stellt getrocknet ein dunkles Pulver  dar, welches in Wasser und verdünnter     Soda-          lösung    mit blaugrüner, in verdünnter Natron  lauge mit blauer und in konzentrierter Schwe  felsäure mit violetter Farbe löslich ist.

      <I>Beispiel:</I>  <B>79,9</B> Teile des Farbstoffes aus     6-Sulfo-4-          chlor-o-amidophenol    und     P-Naphthylamin          (Natriumsalz)    werden in<B>1600</B> Teilen Wasser  kochend gelöst, 45,3 Teile kristallisiertes       Natriumacetat        hinzugelöst,

      hernach 40 Teile  Chromoxyd in Form von     ameisensaurern    Chrom  kochend gelöst in 400 Teilen Wasser zuge  setzt und zum     Schluss    noch     16#2    Teile einer         85        %igen        Ameisensäure        zugegeben.        Man     kocht so lange, bis sich die lösliche     Chrom-          verbindLiDg    gebildet hat. Den Farbstoff ge  winnt man in -üblicher Weise.



  Process for the preparation of a new azo dye containing Ehrom. It has been found that a new chromium-containing azo dye is obtained if the dye, which is formed from diazotized 6-sulfo-4-chloro-2-amino-1-pheriol and P-naphthylamine, with an organic chromium salt in the presence of a treated with organic acid.

   When dried, the dyestuff containing Ehrom is a dark powder which is soluble in water and dilute soda solution with blue-green, in dilute sodium hydroxide with blue and in concentrated sulfuric acid with purple color.

      <I> Example: </I> <B> 79.9 </B> parts of the dye from 6-sulfo-4-chloro-o-amidophenol and P-naphthylamine (sodium salt) are used in <B> 1600 </ B > Parts of boiling water dissolved, 45.3 parts of crystallized sodium acetate dissolved,

      then 40 parts of chromium oxide in the form of formic acid chromium dissolved at the boil in 400 parts of water and finally 16 parts of an 85% formic acid were added. It is boiled until the soluble chromium compound has formed. The dye is obtained in the usual way.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines ehrom- haltigen Azofarbstoffes, dadurch gekennzeich net, dass man -den Farbstoff, welcher aus diazotiertem 6-Sulfo-4-chlor-2-amiiio-l-phenol undp-Naphthylamin entsteht, mit einem organi schen Chromsalz in Gegenwart einer organi- sehen Säure behandelt. PATENT CLAIM: A process for the production of an azo dye containing Ehrom, characterized in that the dye, which is formed from diazotized 6-sulfo-4-chloro-2-amiiio-l-phenol and p-naphthylamine, is mixed with an organic chromium salt in Treated the presence of an organic acid. Der erhaltene ehrom- haltige Farbstoff stellt getrocknet ein dunkles Pulver dar, welches in Wasser und verdünn ter Sodalösung mit blaugrüner, in verdünnter Natronlauge mit blauer und in konzentrierter Schwefelsäure mit violetter Farbe löslich ist. The dyestuff obtained containing Ehrom is a dark powder when dried, which is soluble in water and dilute soda solution with blue-green, in dilute sodium hydroxide solution with blue and in concentrated sulfuric acid with violet color.
CH130156D 1927-07-28 1927-07-28 Process for the production of a new chromium-containing azo dye. CH130156A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH130156T 1927-07-28

Publications (1)

Publication Number Publication Date
CH130156A true CH130156A (en) 1928-11-30

Family

ID=4388511

Family Applications (1)

Application Number Title Priority Date Filing Date
CH130156D CH130156A (en) 1927-07-28 1927-07-28 Process for the production of a new chromium-containing azo dye.

Country Status (1)

Country Link
CH (1) CH130156A (en)

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