CH149896A - Process for the production of a metal-containing dye. - Google Patents
Process for the production of a metal-containing dye.Info
- Publication number
- CH149896A CH149896A CH149896DA CH149896A CH 149896 A CH149896 A CH 149896A CH 149896D A CH149896D A CH 149896DA CH 149896 A CH149896 A CH 149896A
- Authority
- CH
- Switzerland
- Prior art keywords
- dye
- cobalt
- metal
- releasing agent
- red
- 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
- C09B45/20—Monoazo compounds containing cobalt
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Pigments, Carbon Blacks, Or Wood Stains (AREA)
- Paints Or Removers (AREA)
Description
Verfahren zur Herstellung eines metallhaltigen Farbstoffes. Es wurde gefunden, dass man einen neuen metallhaltigen Farbstoff erhält, wenn man den Farbstoff aus diazotiertem 5-Nitro-2- amino-l-phenol und 2,4-Dioxychinolin in einem Medium, dessen PI, nicht grösser als 10 ist, mit einem kobaltabgebenden Mittel behandelt.
Der erhaltene Farbstoff stellt ein dunkel rotbraunes Pulver dar, das sich in verdünn ter Sodalösung mit gelbroter und in konzen trierter Schwefelsäure mit oranger Farbe löst. Aus der Lösung des Farbstoffes in Zaponlack erhält man auf Metallfolien hirschrote Überzüge.
<I>Beispiel:</I> 3,26 Gewichtsteile des Farbstoffes aus di- a.zotiertem 5-Nitro-@2-amino-l-phenol und 2,4- Dioxychinolin werden in 2000 Teilen Wasser gelöst und mit 1,5 Teilen ameisensaurem Ko balt 2 Stunden am Rückflusskühler zum Kochen erhitzt. Hierauf wird die abgeschie dene Kobaltverbindung des Farbstoffes fil- triert, ausgewaschen und bei mässiger Tem peratur getrocknet.
Die Behandlung mit Kobaltformiat führt zum gleichen Resultat, wenn man dem Reak tionsgemisch Zusätze wie zum Beispiel Na- triumformiat, Natriumacetat, Kochsalz oder Natriumsulfit beigibt.
Process for the production of a metal-containing dye. It has been found that a new metal-containing dye is obtained if the dye of diazotized 5-nitro-2-amino-1-phenol and 2,4-dioxyquinoline in a medium whose PI is not greater than 10, with a treated cobalt-releasing agents.
The dye obtained is a dark red-brown powder, which dissolves in dilute soda solution with yellow-red and in concentrated sulfuric acid with an orange color. Deer-red coatings are obtained on metal foils from the solution of the dye in zapon varnish.
<I> Example: </I> 3.26 parts by weight of the dye from di- a.zotierter 5-nitro- @ 2-amino-1-phenol and 2,4-dioxyquinoline are dissolved in 2000 parts of water and 1.5 Share formic acid Ko balt heated to the boil for 2 hours on the reflux condenser. The deposited cobalt compound of the dye is then filtered, washed out and dried at a moderate temperature.
Treatment with cobalt formate leads to the same result if additives such as sodium formate, sodium acetate, common salt or sodium sulfite are added to the reaction mixture.
Claims (1)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH149896T | 1929-07-03 | ||
CH141535T | 1929-07-03 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH149896A true CH149896A (en) | 1931-09-30 |
Family
ID=25713830
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH149896D CH149896A (en) | 1929-07-03 | 1929-07-03 | Process for the production of a metal-containing dye. |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH149896A (en) |
-
1929
- 1929-07-03 CH CH149896D patent/CH149896A/en unknown
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