CH146182A - Process for the production of a metal-containing dye. - Google Patents
Process for the production of a metal-containing dye.Info
- Publication number
- CH146182A CH146182A CH146182DA CH146182A CH 146182 A CH146182 A CH 146182A CH 146182D A CH146182D A CH 146182DA CH 146182 A CH146182 A CH 146182A
- Authority
- CH
- Switzerland
- Prior art keywords
- dye
- brown
- metal
- salts
- treated
- 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
- C09B45/04—Azo compounds in general
-
- 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
- C09B45/04—Azo compounds in general
- C09B45/12—Azo compounds in general other metal compounds
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (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 4-Nitro-2- amino-l-phenol und Resorcin in einem Medium, dessen pH nicht grösser als 10 ist, mit Salzen de's dreiwertigen Eisens behandelt.
Der erhaltene Farbstoff stellt ein dunkel braunes Pulver dar, das sich in Natronlauge mit tiefbrauner und in konzentrierter Schwefel säure mit oranger Farbe löst. Aus der braunen Lösung des Farbstoffes in Zaporilack erhält man auf Metallfolien lebhaft braune, sehr lichtechte Anstriche. <I>Beispiel:</I> 2,74 Teile des, Farbstoffes aus diazotiertem 4-Nitro-2-amino-l-phenol und Resorcin werden in 200 Teilen Wasser heiss gelöst und mit einer 0,62 Teilen Eisen entsprechenden .Menge Eisenchlorid einige Zeit zum Kochen erhitzt.
Nach dem Erkalten der Reaktionslösung wird der Farbstoff mit wenig Kochsalz völlig ab <B>1</B> geschieden, abfiltriert, gut ausgewaschen und getrocknet.
Die Behandlung mit Eisenchlorid führt zum gleichen Resultat, wenn man dem Re aktionsgemisch Zusätze wie z. B. Natrium- formiat, Natriumacetat, Kochsalz oder Na triumsulfit beigibt.
Process for the production of a metal-containing dye. It was found; that a new metal-containing dye is obtained if the dye of diazotized 4-nitro-2-amino-1-phenol and resorcinol is treated with salts of trivalent iron in a medium whose pH is not greater than 10.
The dye obtained is a dark brown powder which dissolves in sodium hydroxide solution with deep brown and in concentrated sulfuric acid with an orange color. From the brown solution of the dye in Zaporilack, vivid brown, very lightfast paints are obtained on metal foils. <I> Example: </I> 2.74 parts of the dye from diazotized 4-nitro-2-amino-l-phenol and resorcinol are dissolved in 200 parts of hot water and an amount of iron chloride corresponding to 0.62 part of iron heated to boil for some time.
After the reaction solution has cooled, the dye is completely separated from <B> 1 </B> with a little sodium chloride, filtered off, washed well and dried.
Treatment with ferric chloride leads to the same result if you add additives to the reaction mixture such as. B. sodium formate, sodium acetate, table salt or sodium sulfite added.
Claims (1)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH146182T | 1929-07-03 | ||
CH141535T | 1929-07-03 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH146182A true CH146182A (en) | 1931-03-31 |
Family
ID=25713818
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH146182D CH146182A (en) | 1929-07-03 | 1929-07-03 | Process for the production of a metal-containing dye. |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH146182A (en) |
-
1929
- 1929-07-03 CH CH146182D patent/CH146182A/en unknown
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