CH148364A - Process for the production of a new metal-containing dye. - Google Patents

Process for the production of a new metal-containing dye.

Info

Publication number
CH148364A
CH148364A CH148364DA CH148364A CH 148364 A CH148364 A CH 148364A CH 148364D A CH148364D A CH 148364DA CH 148364 A CH148364 A CH 148364A
Authority
CH
Switzerland
Prior art keywords
chromium
dye
containing dye
production
dissolve
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 CH148364A publication Critical patent/CH148364A/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)
  • Chemical Treatment Of Metals (AREA)

Description

  

      Verfahren    zur     Herstellung    eines neuen metallhaltigen Farbstoffes.    Es wurde gefunden, dass man einen neuen  chromhaltigen Farbstoff erhält, wenn man  den     Azofarbstoff    aus     diazotiertem        5-Nitro-4-          chlor-2-amino-l-phenol    und     P-Naphthylamin     in Gegenwart von     Pyridin    mit chromabge  benden Mitteln behandelt.  



  Der erhaltene chromhaltige Farbstoff stellt  ein schwarzes Pulver dar, das sich in Was  ser nicht, in Natronlauge schwer und in kon  zentrierter Schwefelsäure mit blauer Farbe  löst. In organischen Lösungsmitteln löst  sich der Farbstoff mit     blaustichiggrüner    Farbe  und ergibt zum Beispiel aus einer Lösung  in handelsüblichem     Zaponlack    oder     Acetyl-          zelluloselack    auf Metallfolien     blaustichiggrüne     Überzüge.

      <I>Beispiel:</I>  3,42 Gewichtsteile des Farbstoffes aus  dianotiertem     5-Nitro-4-chlor-2-amino-l-phenol     und     ss-Naphthylamin    werden in 100 Teilen       Pyridin    gelöst und mit einer 1,14 Teilen     Crz0s          entsprechenden    Menge ameisensaurem Chrom    einige Stunden am     Rück$usskühler    zum Kochen  erhitzt.

   Hierauf wird die tief blaugrüne Lö  sung von etwas     vorhandenem    Chromschlamm       abfiltriert    und der     Farbstoff    durch     Abdestil-          lieren    des Lösungsmittels im     Vakuum    oder  auch auf andere Weise, zum Beispiel durch  Verdünnen mit Wasser, abgeschieden und  getrocknet.  



  Als chromabgebende Mittel können statt       Chromformiat    andere, wie zum Beispiel Chrom  acetat, verwendet werden; die     Chromierung     kann ferner in Gegenwart geeigneter Zusätze,  wie zum Beispiel der     Alkalisalze    organischer  Säuren, durchgeführt werden.



      Process for the production of a new metal-containing dye. It has been found that a new chromium-containing dye is obtained if the azo dye composed of diazotized 5-nitro-4-chloro-2-amino-1-phenol and p-naphthylamine is treated with chromium-releasing agents in the presence of pyridine.



  The chromium-containing dye obtained is a black powder that does not dissolve in water, difficult to dissolve in sodium hydroxide solution and blue in color in concentrated sulfuric acid. In organic solvents, the dye dissolves with a bluish green color and, for example, results in a solution in commercially available zapon varnish or acetyl cellulose varnish on metal foils with bluish green coatings.

      <I> Example: </I> 3.42 parts by weight of the dye from dianotized 5-nitro-4-chloro-2-amino-1-phenol and β-naphthylamine are dissolved in 100 parts of pyridine and 1.14 parts of Crz0s Heat the appropriate amount of formic chromium for a few hours on the reflux condenser to the boil.

   The deep blue-green solution is then filtered off from some of the chromium sludge present and the dye is separated off by distilling off the solvent in vacuo or in another way, for example by diluting with water, and drying it.



  Instead of chromium formate, other chromium donating agents, such as chromium acetate, can be used; the chromating can also be carried out in the presence of suitable additives, such as, for example, the alkali metal salts of organic acids.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines neuen chromhaltigen Farbstoffes, dadurch gekeiiii- zeichnet, dass man den Azofarbstoff aus dia- zotiertem 5-Nitro-4-chlor - 2 - amino -1- phenol und f-Naphthylamin in Gegenwart von Pyri- din mit chromabgebenden Mitteln behandelt. PATENT CLAIM: Process for the production of a new chromium-containing dye, characterized in that the azo dye is made from diazotized 5-nitro-4-chloro-2-amino-1-phenol and f-naphthylamine in the presence of pyridine with chromium-releasing agents Means treated. Der erhaltene chromhaltige Farbstoff stellt ein schwarzes Pulver dar, das sich in Wasser nicht, in Natronlauge schwer und in kon zentrierter Schwefelsäure mit blauer Farbe löst. ln organischen Lösungsmitteln löst sich der Farbstoff mit blaustichiggrüner Farbe und ergibt zum Beispiel aus einer Lösung in handelsüblichem Zaponlack oder Acetyl- zelluloselack auf Metallfolien blaustichiggrüne Überzüge. The chromium-containing dye obtained is a black powder which does not dissolve in water, difficult to dissolve in sodium hydroxide solution and blue in color in concentrated sulfuric acid. The dye dissolves in organic solvents with a bluish green color and, for example, results in a solution in commercially available Zapon lacquer or acetyl cellulose lacquer on metal foils with bluish green coatings.
CH148364D 1929-06-08 1929-06-08 Process for the production of a new metal-containing dye. CH148364A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH145447T 1929-06-08
CH148364T 1929-06-08

Publications (1)

Publication Number Publication Date
CH148364A true CH148364A (en) 1931-07-15

Family

ID=25714694

Family Applications (1)

Application Number Title Priority Date Filing Date
CH148364D CH148364A (en) 1929-06-08 1929-06-08 Process for the production of a new metal-containing dye.

Country Status (1)

Country Link
CH (1) CH148364A (en)

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