CH203036A - Process for the preparation of an azo dye containing complexed chromium. - Google Patents
Process for the preparation of an azo dye containing complexed chromium.Info
- Publication number
- CH203036A CH203036A CH203036DA CH203036A CH 203036 A CH203036 A CH 203036A CH 203036D A CH203036D A CH 203036DA CH 203036 A CH203036 A CH 203036A
- Authority
- CH
- Switzerland
- Prior art keywords
- azo dye
- chromium
- blackish
- preparation
- dye containing
- Prior art date
Links
- 239000000987 azo dye Substances 0.000 title claims description 9
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 title claims description 8
- 229910052804 chromium Inorganic materials 0.000 title claims description 8
- 239000011651 chromium Substances 0.000 title claims description 8
- 238000000034 method Methods 0.000 title claims description 5
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 9
- 150000001845 chromium compounds Chemical class 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 239000010985 leather Substances 0.000 claims description 2
- 239000000843 powder Substances 0.000 claims description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N sulfuric acid Substances OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 2
- 239000000243 solution Substances 0.000 description 4
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- BFMYDTVEBKDAKJ-UHFFFAOYSA-L disodium;(2',7'-dibromo-3',6'-dioxido-3-oxospiro[2-benzofuran-1,9'-xanthene]-4'-yl)mercury;hydrate Chemical compound O.[Na+].[Na+].O1C(=O)C2=CC=CC=C2C21C1=CC(Br)=C([O-])C([Hg])=C1OC1=C2C=C(Br)C([O-])=C1 BFMYDTVEBKDAKJ-UHFFFAOYSA-L 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
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
- C09B45/16—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
- C09B45/18—Monoazo compounds containing copper
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Coloring (AREA)
Description
Verfahren zur Verstellung eines komplex gebundenes Chrom enthaltenden Azofarbstoffes. Es wurde gefunden, dass einkomplex ge bundenes Chrom enthaltender Azofarbstoff hergestellt werden kann, wenn der Azofarb- stoff aus 1 Mol diazotierter 4-Ni.tro-2-amino- 1-oxybenzol-6-sulfonsäure und 1 Mol 5-Oxy- perinaphthindandion mit chromabgebenden Mitteln behandelt wird.
Die neue Chromverbindung stellt ein graues Pulver dar, das sich in Wasser mit schwärzlich braunroter, in 10%iger Soda lösung und in 10%iger Natronlauge mit schwärzlich braunoranger und in konzen trierter Schwefelsäure mit schwärzlich brau ner Farbe löst. Sie erzeugt auf Leder violett schwarze Töne von sehr guten Echtheits eigenschaften.
Der dem Verfahren als Ausgangsstoff dienende Azofarbstoff kann durch Kupplung in alkalischem Medium von äquimolekularen Mengen diazotierter 4-Nitro-2-amino-l-oxy- benzol-6-sulfonsäure und 5-Oxyperinaphthin- dandion erhalten werden. Die Behandlung mit chrömabgebenden Mitteln erfolgt nach bekannten Methoden, beispielsweise durch Erhitzen in wässriger Lösung mit Salzen des dreiwertigen Chroms.
<I>Beispiel:</I> Man erhitzt eine Lösung aus 45,7 Teilen des Azofarbstoffes aus diazotierter 4-Nitro- 2-amino-l-oxybenzol-6-sulfonsäure und 5- Oxyperinaphthindandion in 1000 Teilen Wasser mit einer Fluorchromlösung, enthal tend 8,3 Teile Cr203, so lange rückfliessend, bis der Azofarbstoff vollständig in seine Chromverbindung übergegangen ist.
Hierauf filtriert man von unlöslichen Bestandteilen ab, scheidet die Chromverbindung durch Bei gabe von Kochsalz ab, filtriert und trocknet.
Process for adjusting an azo dye containing complexed chromium. It has been found that an azo dye containing complexly bound chromium can be produced if the azo dye is made up of 1 mol of diazotized 4-Ni.tro-2-amino-1-oxybenzene-6-sulfonic acid and 1 mol of 5-oxyperinaphthindanedione with chromium-releasing agents is treated.
The new chromium compound is a gray powder that dissolves in water with a blackish brownish-red solution in 10% soda and in 10% sodium hydroxide solution with blackish brown-orange and in concentrated sulfuric acid with a blackish-brown color. It produces violet-black tones with very good fastness properties on leather.
The azo dye used as the starting material for the process can be obtained by coupling in an alkaline medium equimolecular amounts of diazotized 4-nitro-2-amino-1-oxybenzene-6-sulfonic acid and 5-oxyperinaphthinedandione. Treatment with chromium-releasing agents takes place according to known methods, for example by heating in an aqueous solution with salts of trivalent chromium.
<I> Example: </I> A solution of 45.7 parts of the azo dye from diazotized 4-nitro-2-amino-1-oxybenzene-6-sulfonic acid and 5-oxyperinaphthindanedione in 1000 parts of water is heated with a fluorochrome solution containing tend 8.3 parts of Cr203, refluxing until the azo dye has completely converted into its chromium compound.
Insoluble constituents are then filtered off, the chromium compound is separated off by adding sodium chloride, filtered and dried.
Claims (1)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH203036T | 1937-05-22 | ||
| CH199462T | 1938-08-31 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH203036A true CH203036A (en) | 1939-02-15 |
Family
ID=25723300
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH203036D CH203036A (en) | 1937-05-22 | 1937-05-22 | Process for the preparation of an azo dye containing complexed chromium. |
Country Status (1)
| Country | Link |
|---|---|
| CH (1) | CH203036A (en) |
-
1937
- 1937-05-22 CH CH203036D patent/CH203036A/en unknown
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