CH301660A - 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
- CH301660A CH301660A CH301660DA CH301660A CH 301660 A CH301660 A CH 301660A CH 301660D A CH301660D A CH 301660DA CH 301660 A CH301660 A CH 301660A
- Authority
- CH
- Switzerland
- Prior art keywords
- chromium
- dye
- complex
- containing azo
- releasing agent
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims description 10
- 239000000987 azo dye Substances 0.000 title claims description 6
- 229910052751 metal Inorganic materials 0.000 title claims description 4
- 239000002184 metal Substances 0.000 title claims description 4
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 18
- 229910052804 chromium Inorganic materials 0.000 claims description 18
- 239000011651 chromium Substances 0.000 claims description 16
- 239000000975 dye Substances 0.000 claims description 16
- 239000003795 chemical substances by application Substances 0.000 claims description 7
- NYGZLYXAPMMJTE-UHFFFAOYSA-M metanil yellow Chemical group [Na+].[O-]S(=O)(=O)C1=CC=CC(N=NC=2C=CC(NC=3C=CC=CC=3)=CC=2)=C1 NYGZLYXAPMMJTE-UHFFFAOYSA-M 0.000 claims description 7
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 239000002253 acid Substances 0.000 claims description 4
- 150000001845 chromium compounds Chemical class 0.000 claims description 4
- 125000003118 aryl group Chemical group 0.000 claims description 2
- 230000007935 neutral effect Effects 0.000 claims description 2
- 239000000843 powder Substances 0.000 claims description 2
- 210000002268 wool Anatomy 0.000 claims description 2
- 239000011230 binding agent Substances 0.000 claims 1
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 6
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 4
- LPXPTNMVRIOKMN-UHFFFAOYSA-M sodium nitrite Chemical compound [Na+].[O-]N=O LPXPTNMVRIOKMN-UHFFFAOYSA-M 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- 150000007513 acids Chemical class 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 239000011541 reaction mixture Substances 0.000 description 2
- 235000010288 sodium nitrite Nutrition 0.000 description 2
- WHIXQFSPEDIMGL-UHFFFAOYSA-N 2-(4-chlorophenyl)-5-methyl-4h-pyrazol-3-one Chemical compound O=C1CC(C)=NN1C1=CC=C(Cl)C=C1 WHIXQFSPEDIMGL-UHFFFAOYSA-N 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 125000001931 aliphatic group Chemical group 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 239000002585 base Chemical class 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 230000009918 complex formation Effects 0.000 description 1
- 125000000664 diazo group Chemical group [N-]=[N+]=[*] 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000001465 metallisation Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 150000007524 organic acids Chemical class 0.000 description 1
- 235000005985 organic acids Nutrition 0.000 description 1
- 239000003960 organic solvent Chemical class 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Description
Verfahren zur Herstellung eines metallbaltigen Azofarbstoffes. Es wurde gefunden, dass man zu einem neuen, wertvollen metallhaltigen Azofarbstoff gelangt, wenn man auf den Monoazofarbstoff der Formel
EMI0001.0006
ebromabgebende Mittel derart einwirken lässt, ,.lass ein chromhaltiger Azofarbstoff entsteht, der zwei Monoazofarbstoffmoleküle an ein Chromatom komplex gebunden enthält.
Der neue Farbstoff bildet ein braunes Pul ver, das sich in Wasser mit oranger Farbe löst und Wolle aus neutralem bis essigsaurem Bade in rotstichig orangen Tönen färbt.
Der als Ausgangsstoff dienende, der oben stehenden Formel entsprechende Monoazo- farbstoff kann durch Kupplung des 1-(4'-- (:'hloi-phenyl)-3-methyl-5-pyrazolons mit nach < in sieh bekannten Methoden, z. B. mittels Salzsäure und Natriumnitrit, diazotiertem 2- Amino-6-nitro-1.-oxyberizol-4-sulfonsäureamid hergestellt werden.
Die Behandlung mit den ehromabgebenden Mitteln erfolgt, wie bereits erwähnt, in der MTeise, dass ein chromhaltiger Farbstoff ent steht, der zwei Monoazofarbstoffmoleküle an ein Atom Chrom komplex gebunden enthält. Demgemäss führt man die Chromierung zweck mässig mit solchen chromabgebenden Mitteln und nach solchen Methoden durch, welche er fahrungsgemäss komplexe Chromverbindungen dieser Zusammensetzung liefern. Es empfiehlt sich im allgemeinen, auf ein Molekül eines Farbstoffes weniger als ein Atom Chrom zu verwenden i zd/oder die Chromierung in schwach saurem bis alkalischem Medium aus zuführen.
Demzufolge sind auch diejenigen Chromverbindungen, die in alkalischem Me dium beständig sind, für die Durchführung des Verfahrens besonders gut geeignet, wie zum Beispiel solche Chromverbindungen ali- phatischer Oxycarbonsäuren oder vorzugs weise aromatischer o-Oxycarbonsäuren, welche das Chrom in komplexer Bindung enthalten. Die Metallisierung geschieht mit Vorteil in der Wärme, offen oder unter Druck, z. B. bei Siedetemperatur des Reaktionsgemisches, ge gebenenfalls in Anwesenheit geeigneter Zu sätze, z. B. in Anwesenheit von Salzen organi scher Säuren, von Basen, organischen Lö sungsmitteln oder weiteren die Komplexbil dung .fördernden Mitteln.
<I>Beispiel:</I> 23,3 Teile '2-Amino-6-nitro-1-oxybenzol-4- sulfonsäureamid werden in 50 Teilen Wasser und 14 Teilen 30 % iger Salzsäure gelöst und bei 0 bis 5 mit einer wässerigen Lösung von 6,
9 Teilen Natriiunnitrit diazotiert. Die mit Natriumcarbonat neutralisierte Diazosuspen- sion wird bei 10 bis 12 in eine Lösung aus 21 Teilen 1-(4'-Chlorphenyl)-3-methyl-5-pyr- azolon, 50 Teilen Wasser und 14,0 Teilen 30o/oiger Natriiunhydroxydlösung eingegos sen. Die Kupplung verläuft sehr rasch. Der Farbstoff wird durch Hinzufügen von Na triumchlorid vollständig abgeschieden.
Die durch Abfiltrieren gewonnene Farbstoffpaste wird in 250 Teilen Wasser verrührt und mit 120 Teilen einer Lösung von ehromsalicylsau- rem Natrium/Kalium mit einem Chromgehalt von 2,6 '/\0 sowie 6,
7 Teilen 30 % iger N atrium- hydroxydlösung versetzt. Das Ganze wird während 3 Stunden am Rückfluss gekocht. Nach dieser Zeit. ist. die Cliromiei2ing beendet. Der chromhaltige Farbstoff wird durch Ein dampfen des Reaktionsgemisehes im Vakuiun isoliert.
Process for the production of a metal containing azo dye. It has been found that a new, valuable metal-containing azo dye is obtained by using the monoazo dye of the formula
EMI0001.0006
Let the ebroma-releasing agent act in such a way that a chromium-containing azo dye is formed which contains two monoazo dye molecules bound to a chromium atom in a complex.
The new dye forms a brown powder that dissolves in water with an orange color and dyes wool from neutral to acetic acid baths in reddish orange tones.
The monoazo dye used as the starting material and corresponding to the above formula can be prepared by coupling the 1- (4 '- (:' hloi-phenyl) -3-methyl-5-pyrazolone with methods known in the art, e.g. using hydrochloric acid and sodium nitrite, diazotized 2-amino-6-nitro-1.-oxyberizole-4-sulfonic acid amide.
As already mentioned, the treatment with the Ehrom-donating agents takes place in the principle that a chromium-containing dye is created which contains two monoazo dye molecules bound to one atom of chromium in a complex. Accordingly, the chromium plating is expediently carried out with such chromium-releasing agents and by methods which, according to experience, provide complex chromium compounds of this composition. It is generally advisable to use less than one atom of chromium per molecule of a dye i zd / or to carry out the chromation in a weakly acidic to alkaline medium.
Accordingly, those chromium compounds that are stable in alkaline media are particularly well suited for carrying out the method, such as those chromium compounds of aliphatic oxycarboxylic acids or preferably aromatic o-oxycarboxylic acids which contain the chromium in complex bonds. The metallization takes place with advantage in the heat, open or under pressure, z. B. at the boiling point of the reaction mixture, ge where appropriate in the presence of suitable additives to, for. B. in the presence of salts of organic acids, bases, organic solvents or other means of promoting the complex formation.
<I> Example: </I> 23.3 parts of 2-amino-6-nitro-1-oxybenzene-4-sulfonic acid amide are dissolved in 50 parts of water and 14 parts of 30% strength hydrochloric acid and, at 0 to 5, with an aqueous Solution of 6,
9 parts of sodium nitrite diazotized. The diazo suspension neutralized with sodium carbonate is poured into a solution of 21 parts of 1- (4'-chlorophenyl) -3-methyl-5-pyrazolone, 50 parts of water and 14.0 parts of 30% sodium hydroxide solution at 10-12 sen. The coupling is very quick. The dye is completely deposited by adding sodium chloride.
The dye paste obtained by filtering off is stirred in 250 parts of water and mixed with 120 parts of a solution of Ehromsalicylsau- rem sodium / potassium with a chromium content of 2.6% and 6,
7 parts of 30% strength sodium hydroxide solution are added. The whole is refluxed for 3 hours. After this time. is. the cliromiei2ing ended. The chromium-containing dye is isolated by evaporating the reaction mixture in a vacuum.
Claims (1)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH298511T | 1951-07-18 | ||
| CH301660T | 1951-07-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH301660A true CH301660A (en) | 1954-09-15 |
Family
ID=25733996
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH301660D CH301660A (en) | 1951-07-18 | 1951-07-18 | Process for the preparation of a metal-containing azo dye. |
Country Status (1)
| Country | Link |
|---|---|
| CH (1) | CH301660A (en) |
-
1951
- 1951-07-18 CH CH301660D patent/CH301660A/en unknown
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