CH140603A - Process for the preparation of a metal-containing azo dye. - Google Patents
Process for the preparation of a metal-containing azo dye.Info
- Publication number
- CH140603A CH140603A CH140603DA CH140603A CH 140603 A CH140603 A CH 140603A CH 140603D A CH140603D A CH 140603DA CH 140603 A CH140603 A CH 140603A
- Authority
- CH
- Switzerland
- Prior art keywords
- dye
- azo dye
- metal
- preparation
- chromium
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Coloring (AREA)
Description
Zusatzpatent zum Hauptpatent Nr. 138024. Verfahren zur Herstellung eines metallhaltigen Azofarbstoffes. Es wurde gefunden, ;da,ss' man einen neuen metallhaltigen Farbstoff erhält, wenn man den chromhaltigen Farbstoff, der durch Behandlung des Azofarbstoffes aus der nitrierten 1- Dia.zo - 2- ogynaphtha,lin - 4- sulfosäure und ss-Naphthol mit Chromfo;
rmiat in der Wärme und in Gegenwart von Na triumacetat entsteht, mit. Kupferverbindun gen, die durch Einwirkung von Alkalien auf Kupfersalze in Gegenwart von Glyzerin entstehen, behandelt.
Der neue Farbstoff ist in Wasser mit violettschwarzer, in 10 %iger Natronlauge mit rötlich braunvioletter und in konzen- trierter Schwefelsäure mit blauer Farbe lös lich. Er färbt Wolle und Seide in schwarzen Tönen an.
Beispiel: Eine nachdem Beispiel der Patentschrift Nr. 130155 erhältliche, 70 Teile der Chrom verbindung des Azofarbstoffes aus der nitrierten Dia.zoverbindung der 1-Amino-2'- oxy na.phtha.lin-4-sulfosäure und ss-Naphthol enthaltende Lösung wird vom dem Aussalzen bei 40' mit .einer kupferhaltigen Lösung aus 25 Teilen:
Kupfersulfat, 15 Teilen Glyzerin, 55 Teilen Natronlauge von<B>30'</B> B6 und 400 Teilen Wasser versetzt und vier Stunden bei dieser Temperatur gerührt. Man bringt die teilweise ausgeschiedene Chrom-Kupfer- verbindung durch Zugabe von 30 Teilen Es sigsäure in Lösung, filtriert, salzt aus und trocknet.
Additional patent to main patent No. 138024. Process for the production of a metal-containing azo dye. It has been found that a new metal-containing dye is obtained if the chromium-containing dye, which is obtained by treating the azo dye from the nitrated 1-dia.zo-2-ogynaphtha, lin-4-sulfonic acid and s-naphthol with Chromfo;
rmiat arises in the heat and in the presence of sodium acetate, with. Copper compounds formed by the action of alkalis on copper salts in the presence of glycerine are treated.
The new dye is soluble in water with violet-black, in 10% sodium hydroxide solution with reddish brown-violet and in concentrated sulfuric acid with blue color. He dyes wool and silk in black tones.
Example: A solution containing 70 parts of the chromium compound of the azo dye from the nitrated dia.zo compound of the 1-amino-2'-oxy na.phtha.lin-4-sulfonic acid and s-naphthol is obtainable according to the example of patent specification No. 130155 from salting out at 40 'with a copper-containing solution of 25 parts:
Copper sulfate, 15 parts of glycerol, 55 parts of sodium hydroxide solution of <B> 30 '</B> B6 and 400 parts of water are added and the mixture is stirred for four hours at this temperature. The partially precipitated chromium-copper compound is brought into solution by adding 30 parts of acetic acid, filtered, salted out and dried.
Claims (1)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH140603T | 1928-05-10 | ||
CH138024T | 1928-05-10 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH140603A true CH140603A (en) | 1930-06-15 |
Family
ID=25713071
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH140603D CH140603A (en) | 1928-05-10 | 1928-05-10 | Process for the preparation of a metal-containing azo dye. |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH140603A (en) |
-
1928
- 1928-05-10 CH CH140603D patent/CH140603A/en unknown
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