CH303532A - 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
- CH303532A CH303532A CH303532DA CH303532A CH 303532 A CH303532 A CH 303532A CH 303532D A CH303532D A CH 303532DA CH 303532 A CH303532 A CH 303532A
- Authority
- CH
- Switzerland
- Prior art keywords
- cobalt
- dye
- azo dye
- releasing agent
- atom
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims description 9
- 239000000987 azo dye Substances 0.000 title claims description 6
- 239000002184 metal Substances 0.000 title description 3
- 229910052751 metal Inorganic materials 0.000 title description 3
- 238000002360 preparation method Methods 0.000 title description 2
- 239000000975 dye Substances 0.000 claims description 17
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims description 14
- 229910017052 cobalt Inorganic materials 0.000 claims description 13
- 239000010941 cobalt Substances 0.000 claims description 13
- 239000003795 chemical substances by application Substances 0.000 claims description 7
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims description 6
- 238000001465 metallisation Methods 0.000 claims description 3
- 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 3
- 150000001868 cobalt Chemical class 0.000 claims description 2
- 230000007935 neutral effect Effects 0.000 claims description 2
- 239000004552 water soluble powder Substances 0.000 claims description 2
- 210000002268 wool Anatomy 0.000 claims description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims 1
- 229910052799 carbon Inorganic materials 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 claims 1
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 6
- 239000000243 solution Substances 0.000 description 5
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 4
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- 230000002378 acidificating effect Effects 0.000 description 2
- 150000001869 cobalt compounds Chemical class 0.000 description 2
- 229940044175 cobalt sulfate Drugs 0.000 description 2
- 229910000361 cobalt sulfate Inorganic materials 0.000 description 2
- KTVIXTQDYHMGHF-UHFFFAOYSA-L cobalt(2+) sulfate Chemical compound [Co+2].[O-]S([O-])(=O)=O KTVIXTQDYHMGHF-UHFFFAOYSA-L 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
- 239000011780 sodium chloride Substances 0.000 description 2
- LPXPTNMVRIOKMN-UHFFFAOYSA-M sodium nitrite Chemical compound [Na+].[O-]N=O LPXPTNMVRIOKMN-UHFFFAOYSA-M 0.000 description 2
- 229910021503 Cobalt(II) hydroxide Inorganic materials 0.000 description 1
- VMHLLURERBWHNL-UHFFFAOYSA-M Sodium acetate Chemical compound [Na+].CC([O-])=O VMHLLURERBWHNL-UHFFFAOYSA-M 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 229940011182 cobalt acetate Drugs 0.000 description 1
- QAHREYKOYSIQPH-UHFFFAOYSA-L cobalt(II) acetate Chemical compound [Co+2].CC([O-])=O.CC([O-])=O QAHREYKOYSIQPH-UHFFFAOYSA-L 0.000 description 1
- ASKVAEGIVYSGNY-UHFFFAOYSA-L cobalt(ii) hydroxide Chemical compound [OH-].[OH-].[Co+2] ASKVAEGIVYSGNY-UHFFFAOYSA-L 0.000 description 1
- 230000009918 complex formation Effects 0.000 description 1
- 125000000664 diazo group Chemical group [N-]=[N+]=[*] 0.000 description 1
- 239000012065 filter cake Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000001632 sodium acetate Substances 0.000 description 1
- 235000017281 sodium acetate Nutrition 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- 235000010288 sodium nitrite Nutrition 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 239000000052 vinegar Substances 0.000 description 1
- 235000021419 vinegar Nutrition 0.000 description 1
Description
Verfahren zur Herstellung eines metallhaltigen Azofarbstoffes. Es wurde gefunden, dass man zu einem neuen, wertvollen metallhaltigen Azofarbstoff gelangt, wenn man auf den Monoazofarbstoff der Formel
EMI0001.0009
kobaltabgebende Mittel derart einwirken lässt, dass ein kobalthaltiger Azofarbstoff entsteht, der zwei hlonoazofarbstoffmoleküle an ein liobaltatom komplex gebunden enthält.
Der neue Farbstoff bildet. ein wasserlös- liehes Pulver, das Wolle aus neutralem bis essig:saurem Bade in braungelben Tönen färbt.
Der als Ausgangsstoff dienende, der oben stehenden Formel entsprechende Monoazo- farbstoff kann durch Kupplung des 1-Phenyl- 2-methyl.-5-p7razolon-3'-sulfonsäureamids mit nach an sieh bekannten Methoden, z. B. mittels Salzsäure und :@Tatriumnitrit diazotiertem 2 -lmino-l-oxybenzol-4-sulfonsäureanilid herge stellt werden.
Die Behandlung mit den kobaltabgebenden Mitteln erfolgt gemäss vorliegendem Verfah ren in der Weise, dass ein kobalthaltiger Farb stoff entsteht, der pro Molekül Farbstoff weniger als ein Atom Kobalt in komplexer Bindung enthält. Demgemäss führt man die Metallisierung zweekmässig mit solchen kobalt- abgebenden Mitteln und nach solchen Metho den durch, welche erfahrungsgemäss komplexe Kobaltverbindimgen dieser Zusammensetzung liefern.
Es empfiehlt sich im allgemeinen, auf ein Molekül eines Farbstoffes weniger als ein Atom Kobalt zu verwenden und/oder die Me- tallisierazng in schwach saurem bis alkalischem Medium auszuführen.
Als kobaltabgebende Mittel verwendet man zweckmässig Kobalt salze, wie Kobaltsulfat oder Kobaltacetat, ge gebenenfalls auch frisch gefälltes Kobalthydr- oxyd. <I>Beispiel:
</I> 26,4 Teile 2-Amino-l-oxybenzol-4-sulfon- säureanilid werden in 50 Teilen Wasser und 14 Teilen 30 /o iger Salzsäure gelöst und bei 0 bis 5 mit einer wässerigen Lösung von 6,9 Teilen Natriumnitrit diazotiert. Die mit Na triumca.rbonat neutralisierte Diazosuspension wird bei 10 bis 12 in eine Lösung aus 26,6 Teilen 1-Phenyl-3-methyl-5-pyrazolon-3'-sul- fonsäureamid, 50 Teilen Wasser und 14,
0 Tei- len 30 % iger Natriumhvdroxy dlösung einge- gossen. Die Kupplung verläuft sehr rasch. Der Farbstoff wird durch Hinzufügen von Natriumchlorid abgeschieden.
5,28 Teile des so erhältlichen Farbstoffes werden als feuchter Filterkuchen in 1.00: Tei len Wasser aufgeschlämmt und durch Zugabe von 5 Volumteilen 2n-Natriumhvdroxydlösung und Erwärmen gelöst. Die etwa 80 warme Farbstofflösung versetzt man mit 1,5 Teilen kristallisiertem Natriumacetat und hierauf mit.
30 Teilen einer 70 warmen Kobaltsulfatlösung mit einem. Kobaltgehalt von 1,3%. Nach kur- zer Zeit ist die Komplexbildung beendet, und die Kobaltverbindung des Farbstoffes kann durch Zugabe von Natriumehlorid und ver dünnter Essigsäure abgeschieden werden.
Process for the preparation 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
EMI0001.0009
lets cobalt-releasing agent act in such a way that a cobalt-containing azo dye is formed which contains two hlonoazo dye molecules bound to a liobalt atom in a complex.
The new dye forms. a water-soluble powder that dyes wool from neutral to vinegar: acidic baths in brown-yellow tones.
The monoazo dye used as the starting material and corresponding to the above formula can be prepared by coupling the 1-phenyl-2-methyl.-5-p7razolone-3'-sulfonic acid amide using methods known per se, e.g. B. by means of hydrochloric acid and: @ sodium nitrite diazotized 2 -lmino-l-oxybenzene-4-sulfonic acid anilide herge provides.
The treatment with the cobalt-releasing agents takes place according to the present method in such a way that a cobalt-containing dye is produced which contains less than one atom of cobalt in complex bond per molecule of dye. Accordingly, the metallization is carried out in two ways with such cobalt-releasing agents and by such methods which, experience has shown, provide complex cobalt compounds of this composition.
It is generally advisable to use less than one atom of cobalt per molecule of dye and / or to carry out the metallization in a weakly acidic to alkaline medium.
Cobalt salts, such as cobalt sulfate or cobalt acetate, and, if appropriate, freshly precipitated cobalt hydroxide, are expediently used as cobalt-releasing agents. <I> example:
26.4 parts of 2-amino-1-oxybenzene-4-sulfonic acid anilide are dissolved in 50 parts of water and 14 parts of 30% 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 at 10 to 12 in a solution of 26.6 parts of 1-phenyl-3-methyl-5-pyrazolone-3'-sulphonic acid amide, 50 parts of water and 14,
0 parts of 30% sodium hydroxide solution poured in. The coupling is very quick. The dye is deposited by adding sodium chloride.
5.28 parts of the dye obtainable in this way are suspended as a moist filter cake in 1.00: Tei len water and dissolved by adding 5 parts by volume of 2N sodium hydroxide solution and heating. The approximately 80 warm dye solution is mixed with 1.5 parts of crystallized sodium acetate and then with.
30 parts of a 70 warm cobalt sulfate solution with a. 1.3% cobalt content. After a short time, the complex formation is complete and the cobalt compound of the dye can be deposited by adding sodium chloride and diluted acetic acid.
Claims (1)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH301441T | 1951-08-07 | ||
| CH303532T | 1951-08-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH303532A true CH303532A (en) | 1954-11-30 |
Family
ID=25734350
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH303532D CH303532A (en) | 1951-08-07 | 1951-08-07 | Process for the preparation of a metal-containing azo dye. |
Country Status (1)
| Country | Link |
|---|---|
| CH (1) | CH303532A (en) |
-
1951
- 1951-08-07 CH CH303532D patent/CH303532A/en unknown
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