CH182605A - Process for the preparation of a complexed metal-containing dye. - Google Patents
Process for the preparation of a complexed metal-containing dye.Info
- Publication number
- CH182605A CH182605A CH182605DA CH182605A CH 182605 A CH182605 A CH 182605A CH 182605D A CH182605D A CH 182605DA CH 182605 A CH182605 A CH 182605A
- Authority
- CH
- Switzerland
- Prior art keywords
- diazotized
- mole
- preparation
- nitro
- phenol
- 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
- C09B45/24—Disazo or polyazo compounds
- C09B45/32—Disazo or polyazo compounds containing other metals
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Paper (AREA)
- Coloring (AREA)
Description
<B>Zusatzpatent</B> zum Hauptpatent Nr. 178542. Verfahren zur Herstellung eines komplex gebundenes Metall enthaltenden Farbstoffs. Es wurde gefunden, dass man einen kom plex gebundenes Metall enthaltenden Farb stoff herstellen kann, wenn man 1 Mol diazo- tiertes 4-Nitro-2-amino-l-phenol, 1 Mol diazo- tierte 1-Aminobenzol-4-sulfonsäure, 1 Mol 1 . 3-Dioxybenzol und ein Eisen abgebendes Mittel aufeinander einwirken lässt.
Der erhaltene Farbstoff stellt ein in Wasser mit brauner Farbe leicht lösliches schwarzes Pulver dar. Er löst sich in kon zentrierter Schwefelsäure mit braunstichig oranger Farbe und färbt Leder in gelb braunen Tönen von sehr guten Echtheits- eigenschaften. Das Verfahren kann beispielsweise derart ausgeführt werden,
da.ss man auf das Ein wirkungsprodukt aus 1 Mol diazotiertem 4-Nitro-2-amino-l-phenol und 1 Mol 1.3- Dioxybenzolein Eisen abgebendes Mittel und hierauf 1 Mol diazotierte 1-Aminobenzol-4- sulfonsäure einwirken lässt.
<I>Beispiel:</I> <B>31,6</B> Teile der Eisenverbindung des Farb stoffes aus diazotiertem 4-Nitro-2-amino-l- phenol und 1. 3-Dioxybenzol werden in 200 Teilen Wasser und 27 Teilen 30 % iger Natron lauge in .der Kälte gelöst und bei 10 bis 12' mit der in üblicher Weise hergestellten Diazo- verbindung aus<B>17,3</B> Teilen 1-Aminobenzol- 4-sulfonsäure gekuppelt.
Nach vier- bis sechs stündigem Rühren ist die Kupplung beendet Man neutralisiert mit verdünnter Salzsäure, fällt den Farbstoff mit Kochsalz aus und trocknet.
<B> Additional patent </B> to main patent no. 178542. Process for the production of a dye containing complexed metal. It has been found that a complex metal-containing dye can be produced if 1 mol of diazotized 4-nitro-2-amino-1-phenol, 1 mol of diazotized 1-aminobenzene-4-sulfonic acid, 1 Mole 1. 3-Dioxybenzene and an iron releasing agent can interact.
The dye obtained is a black powder which is easily soluble in water with a brown color. It dissolves in concentrated sulfuric acid with a brownish orange color and dyes leather in yellow-brown shades with very good fastness properties. The method can be carried out, for example,
da.ss is allowed to act on the product of action of 1 mole of diazotized 4-nitro-2-amino-1-phenol and 1 mole of 1,3-dioxybenzene iron releasing agent and then 1 mole of diazotized 1-aminobenzene-4-sulfonic acid.
<I> Example: </I> <B> 31.6 </B> parts of the iron compound of the dye from diazotized 4-nitro-2-amino-1-phenol and 1. 3-dioxybenzene in 200 parts of water and 27 parts of 30% sodium hydroxide solution dissolved in the cold and coupled at 10 to 12 'with the conventionally prepared diazo compound from 17.3 parts of 1-aminobenzenes-4-sulfonic acid.
The coupling is complete after four to six hours of stirring. The mixture is neutralized with dilute hydrochloric acid, the dye is precipitated with sodium chloride and dried.
Claims (1)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH178542T | 1934-08-11 | ||
CH182605T | 1934-08-11 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH182605A true CH182605A (en) | 1936-02-15 |
Family
ID=25720164
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH182605D CH182605A (en) | 1934-08-11 | 1934-08-11 | Process for the preparation of a complexed metal-containing dye. |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH182605A (en) |
-
1934
- 1934-08-11 CH CH182605D patent/CH182605A/en unknown
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