CH148366A - 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
CH148366A
CH148366A CH148366DA CH148366A CH 148366 A CH148366 A CH 148366A CH 148366D A CH148366D A CH 148366DA CH 148366 A CH148366 A CH 148366A
Authority
CH
Switzerland
Prior art keywords
chromium
dye
containing dye
production
green
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 CH148366A publication Critical patent/CH148366A/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)
  • Chemical Treatment Of Metals (AREA)

Description

  

  Zusatzpatent zum Hauptpatent Nr. 145447.    Verfahren zur Herstellung eines neuen metallhaltigen     Farbstoffes.       Es wurde gefunden, dass man einen neuen  chromhaltigen     Farbstoff    erhält, wenn man  den     Azofarbstoff    aus     diazotiertem        4-Nitro-2-          amino-l-phenol    und     2,5-Aminonaphtol,    mine  ralsauer gekuppelt, in Gegenwart von     Pyri-          din    mit chromabgebenden Mitteln behandelt.  



  Der erhaltene     chromhaltige        Farbstoff    stellt  ein schwarzes Pulver dar, das sich in Wasser  nicht, in Natronlauge mit grüner und in  konzentrierter Schwefelsäure mit rotstickig  blaugrauer Farbe löst. In organischen Lösungs  mitteln löst sich der Farbstoff mit grüner       Farbe.    Er ergibt, in     Zapon-    oder     Acetylcel-          luloselack    gelöst, auf Metallfolien gelbstickig  grüne Überzüge.  



       Beispiel:     3,24 Gewichtsteile des Farbstoffes aus       diazotiertem        4-Nitro-2-amino-l-phenol    und       2,5-Aminonaphthol,    in mineralsaurer Lösung  kombiniert, werden in 100 Teilen     Pyridin     gelöst und mit einer 1,14 Teilen     Cr20s    ent  sprechenden Menge     ameisensaurem    Chrom    mehrere Stunden am     Rückfluss    zum Sieden  erhitzt. Die tief grüne Lösung wird hierauf  filtriert, das     Pyridin    im Vakuum     abdestilliert     und der Rückstand bei mässiger     Temperatur     getrocknet.  



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



  Additional patent to main patent No. 145447. 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 made from diazotized 4-nitro-2-amino-1-phenol and 2,5-aminonaphtol, coupled with mineral acid, is treated in the presence of pyridine with chromium-releasing agents .



  The chromium-containing dye obtained is a black powder which does not dissolve in water, in sodium hydroxide solution with green and in concentrated sulfuric acid with red-nitrogenous blue-gray color. The dye dissolves in organic solvents with a green color. When dissolved in zapon or acetyl cellulose varnish, it results in yellowish green coatings on metal foils.



       Example: 3.24 parts by weight of the dye from diazotized 4-nitro-2-amino-1-phenol and 2,5-aminonaphthol, combined in a mineral acid solution, are dissolved in 100 parts of pyridine and an appropriate amount of 1.14 parts of Cr20s Chromium form is heated to boiling under reflux for several hours. The deep green solution is then filtered, the pyridine is distilled off in vacuo and the residue is dried at a moderate temperature.



  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 gekenn zeichnet, dass man den Azofarbstoff aus dia- zotiertem 4-Nitro-2-amino-l-phenol und 2,5- Aminonaphtol, mineralsauer gekuppelt, in Gegenwart von Pyridin mit chromabgeben den Mittel behandelt. Der erhaltene chromhaltige Farbstoff stellt ein schwarzes Pulver dar, das sich in Was ser nicht, in Natronlauge mit grüner und in konzentrierter Schwefelsäure mit rotstichig blaugrauer Farbe löst. PATENT CLAIM: Process for the production of a new chromium-containing dye, characterized in that the azo dye from diazotized 4-nitro-2-amino-1-phenol and 2,5-aminonaphthol, coupled with mineral acid, is released in the presence of pyridine with chromium Means treated. The chromium-containing dye obtained is a black powder that does not dissolve in water, in sodium hydroxide solution with green and in concentrated sulfuric acid with a reddish blue-gray color. In organischen Lö sungsmitteln löst sich der Farbstoff mit grüner Farbe. Er ergibt, in Zapon- oder Acetyleelluloselack gelöst, auf AZetallfolien gelbstichig grüne Überzüge. The dye dissolves in organic solvents with a green color. When dissolved in zapon or acetyl cellulose lacquer, it produces yellowish green coatings on A-metal foils.
CH148366D 1929-06-08 1929-06-08 Process for the production of a new metal-containing dye. CH148366A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH145447T 1929-06-08
CH148366T 1929-06-08

Publications (1)

Publication Number Publication Date
CH148366A true CH148366A (en) 1931-07-15

Family

ID=25714696

Family Applications (1)

Application Number Title Priority Date Filing Date
CH148366D CH148366A (en) 1929-06-08 1929-06-08 Process for the production of a new metal-containing dye.

Country Status (1)

Country Link
CH (1) CH148366A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1072876B (en) * 1955-06-13 1960-01-07 Aktiebolaget Celleco, Stockholm Process and device for the preparation of sulphate cooking acids using cooker exhaust gases

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1072876B (en) * 1955-06-13 1960-01-07 Aktiebolaget Celleco, Stockholm Process and device for the preparation of sulphate cooking acids using cooker exhaust gases

Similar Documents

Publication Publication Date Title
CH148366A (en) Process for the production of a new metal-containing dye.
CH148364A (en) Process for the production of a new metal-containing dye.
CH145845A (en) Process for the production of a metal-containing dye.
CH148365A (en) Process for the production of a new metal-containing dye.
CH167053A (en) Process for the production of a metal-containing dye.
CH148362A (en) Process for the production of a new metal-containing dye.
DE515680C (en) Process for the preparation of pyrazolanthrone-2-carboxylic acid
DE574674C (en) Process for the production of cobalt-containing azo dyes
CH148367A (en) Process for the production of a new metal-containing dye.
CH148363A (en) Process for the production of a new metal-containing dye.
CH131503A (en) Process for the production of a new chromium-containing azo dye.
CH141535A (en) Process for the production of a metal-containing dye.
CH145847A (en) Process for the production of a metal-containing dye.
CH145853A (en) Process for the production of a metal-containing dye.
CH167049A (en) Process for the production of a metal-containing dye.
CH148977A (en) Process for the production of a metal-containing dye.
CH146182A (en) Process for the production of a metal-containing dye.
CH145850A (en) Process for the production of a metal-containing dye.
CH145852A (en) Process for the production of a metal-containing dye.
CH145855A (en) Process for the production of a metal-containing dye.
CH143898A (en) Process for the production of a metal-containing dye.
CH145837A (en) Process for the production of a metal-containing dye.
CH145836A (en) Process for the production of a metal-containing dye.
CH148368A (en) Process for the production of a new metal-containing dye.
CH145860A (en) Process for the production of a metal-containing dye.