CH204714A - Process for the preparation of an azo dye containing complexed cobalt. - Google Patents
Process for the preparation of an azo dye containing complexed cobalt.Info
- Publication number
- CH204714A CH204714A CH204714DA CH204714A CH 204714 A CH204714 A CH 204714A CH 204714D A CH204714D A CH 204714DA CH 204714 A CH204714 A CH 204714A
- Authority
- CH
- Switzerland
- Prior art keywords
- azo dye
- cobalt
- preparation
- dye containing
- sulfonic acid
- Prior art date
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
- C09B45/18—Monoazo compounds containing copper
-
- 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
- C09B45/02—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
- C09B45/20—Monoazo compounds containing cobalt
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Coloring (AREA)
Description
Verfahren zur Herstellung eines komplex gebundenes Kobalt " enthaltenden Azofarbstoifes. Es wurde gefunden, dass ein komplex ge- iun:
denes Kobalt enthaltender Azofarbstoff Lergestellt werden kann, wenn der durch Be- tan.deln des Azofarbstoffes der Formel
EMI0001.0011
ait sulfonierenden Mitteln bis zum Eintritt irrer weiteren Sulfonsäuregruppe erhaltene lzofarbstoff mit Kobalt abgebenden Mitteln ehandelt wird.
Die neue Kobaltverbindung stellt ein ;rauschwarzes Pulver dar, das sich in Was- er mit gelbbrauner, in 10 % iger 8odalösung, owie in 10 %dger Natronlauge mit braun- roter und in konzentrierter Schwefelsäure mit schwärzliohroter Farbe löst und tierische Fasern in echten braunen Tönen färbt.
Der dem Verfahren als Ausgangsstoff dienende, zwei Sulfonsäuregruppen enthal tende Azofarbstoff kann erhalten worden, wenn man 10 Teile des durch alkalische Kupplung hergestellten Azofarbstoffes aus diazotierter 4 - Chlor- 2 -amino-1-oxybenzol-6- sulfonsäure und 5-Aminoperinaphthindan- dion unterhalb 1,0 in 100 Teile rauchende Schwefelsäure, die 2,
4% S03 enthält, ein trägt, 8 iStunden auf 95 bis 100 erhitzt, die Reaktionsmasse auf 400 Teile Eis !giesst, auf 40 erwärmt, filtriert und den Farbstoff aus der Lösung .durch Zugabe von Kochsalz ab scheidet.
<I>Beispiel:</I> 52,5 Teile des zwei Sulfonsäuregruppen enthaltenden Azofarbstoffes, der durch alka- lische Kupplung von diazotierter 4-Chlor-2- amino - 1 - ogybenzol - 6 - ssulfonsäure und 5- Aminoperinaphthindandion und darauffol- gende Behandlung mit sulfonierenden Mit teln hergestellt wurde,
werden in<B>1000</B> Teilen Wasser gelöst und mit einer Lösung aus 31 Teilen kristallisiertem Kobaltsulfat in<B>150</B> Teilen Wasser 10 Minuten zum Sieden er hitzt. Nach dieser Zeit ist der Azofarb.stoff vollständig in seine Kobaltverbindun- über- gegangen. Diese wird durch Beigabe voi Kochsalz, Filtrieren und Trocknen gewonnen
Process for the production of an azo dye containing complexed cobalt ". It has been found that a complex g iun:
denes cobalt-containing azo dye L can be produced if the by exposure to the azo dye of the formula
EMI0001.0011
the Izo dye obtained with sulfonating agents until the entry of an additional sulfonic acid group is treated with agents that donate cobalt.
The new cobalt compound is a very black powder that dissolves in water with yellow-brown, 10% sodium hydroxide solution, as well as 10% sodium hydroxide solution with brown-red color and in concentrated sulfuric acid with blackish-red color, and animal fibers in real brown tones colors.
The azo dye containing two sulfonic acid groups and containing two sulfonic acid groups can be obtained by adding 10 parts of the azo dye prepared by alkaline coupling from diazotized 4-chloro-2-amino-1-oxybenzene-6-sulfonic acid and 5-aminoperinaphthindanedione below 1.0 in 100 parts of fuming sulfuric acid, the 2,
Contains 4% SO3, heated to 95 to 100 for 8 hours, the reaction mixture poured onto 400 parts of ice, heated to 40, filtered and the dye separated from the solution by adding sodium chloride.
<I> Example: </I> 52.5 parts of the azo dye containing two sulfonic acid groups, which is produced by alkali coupling of diazotized 4-chloro-2-amino-1-ogybenzene-6-sulfonic acid and 5-aminoperinaphthindanedione and the following Treatment with sulfonating agents was made,
are dissolved in <B> 1000 </B> parts of water and heated to boiling for 10 minutes with a solution of 31 parts of crystallized cobalt sulfate in <B> 150 </B> parts of water. After this time, the azo dye has completely converted into its cobalt compound. This is obtained by adding table salt, filtering and drying
Claims (1)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH204714T | 1937-05-22 | ||
CH200065T | 1937-05-22 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH204714A true CH204714A (en) | 1939-05-15 |
Family
ID=25723432
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH204714D CH204714A (en) | 1937-05-22 | 1937-05-22 | Process for the preparation of an azo dye containing complexed cobalt. |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH204714A (en) |
-
1937
- 1937-05-22 CH CH204714D patent/CH204714A/en unknown
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