CH303536A - 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
- CH303536A CH303536A CH303536DA CH303536A CH 303536 A CH303536 A CH 303536A CH 303536D A CH303536D A CH 303536DA CH 303536 A CH303536 A CH 303536A
- Authority
- CH
- Switzerland
- Prior art keywords
- cobalt
- dye
- containing azo
- azo dye
- metal
- 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 claims description 4
- 229910052751 metal Inorganic materials 0.000 title claims description 4
- 239000000975 dye Substances 0.000 claims description 16
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims description 15
- 229910017052 cobalt Inorganic materials 0.000 claims description 13
- 239000010941 cobalt Substances 0.000 claims description 13
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims description 9
- 239000003795 chemical substances by application Substances 0.000 claims description 6
- 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 5
- 238000001465 metallisation Methods 0.000 claims description 3
- 150000001868 cobalt Chemical class 0.000 claims description 2
- 238000004519 manufacturing process Methods 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
- 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
- LPXPTNMVRIOKMN-UHFFFAOYSA-M sodium nitrite Chemical compound [Na+].[O-]N=O LPXPTNMVRIOKMN-UHFFFAOYSA-M 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- HRBCDVLFVGOSIC-UHFFFAOYSA-N 2-(3-chlorophenyl)-5-methyl-1h-pyrazol-3-one Chemical compound N1C(C)=CC(=O)N1C1=CC=CC(Cl)=C1 HRBCDVLFVGOSIC-UHFFFAOYSA-N 0.000 description 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 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
- 235000010288 sodium nitrite Nutrition 0.000 description 2
- 229910021503 Cobalt(II) hydroxide Inorganic materials 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Natural products OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- VMHLLURERBWHNL-UHFFFAOYSA-M Sodium acetate Chemical compound [Na+].CC([O-])=O VMHLLURERBWHNL-UHFFFAOYSA-M 0.000 description 1
- 230000002378 acidificating effect Effects 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
- 239000007858 starting material Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Landscapes
- Coloring (AREA)
Description
Verfahren zur Herstellung eines metallhaltigen Azofarbstoffes. Es wurde gefunden, dass man zu einem neuen, wertvollen metallhaltigen Azofarbstoff gelangt, wenn man auf den MOnoaZOf der Formel
EMI0001.0007
l:obaltabgebende Mittel derart einwirken lässt, dass ein kobalthaltiger Azofarbstoff entsteht, der zwei Monoazofarbstoffmoleküle an ein Ko- baltatom komplex gebunden enthält.
Der neue Farbstoff bildet ein wasserlös liches Pulver, das Wolle aus neutralem bis essigsaurem Bade in braungelben Tönen färbt.
Der als Ausgangsstoff dienende, der oben stehenden Formel entsprechende Monoazofarb- stoff kann durch Kupplung des 1-(3'-Chlor- phenyl)-3-methyl-5-pyrazolons mit nach an sieh bekannten Methoden, z. B. mittels Salz säure und Natriumnitrit diazotiertem 2-Amino- l. - oxybenzol - 4 - sulfonsäure-di-ss -oxyäthylamid hergestellt 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 weni ger als ein Atom Kobalt in komplexer Bin dung enthält. Demgemäss führt man die Me- tallisierung zweckmässig mit solchen kobalt- abgebenden Mitteln und nach solchen Me thoden durch, welche erfahrungsgemäss kom plexe Kobaltverbindungen dieser Zusammen setzung liefern.
Es empfiehlt sich im allge meinen, auf ein Molekül eines Farbstoffes weniger als ein Atom Kobalt zu verwenden undloder die Metallisierung in schwach sau rem bis alkalischem Medium auszuführen. Als kobaltabgebende Mittel verwendet man zweck mässig Kobaltsalze wie Kobaltsulfat oder Ko- baltacetat, gegebenenfalls auch frisch gefäll tes Kobalthydroxyd.
Beispiel: 27,6 Teile 2-Amino-l-oxybenzol-4-sulfon- säure-di-,8-o::yäthylamid werden in 50 Teilen Wasser und 14 Teilen 30 % iger Salzsäure ge löst und bei 0 bis 5 mit einer wässrigen Lö sung von 6,9 Teilen Natriumnitrit diazotiert. Die mit Natriumcarbonat neutralisierte Diazo- stispension wird bei 10 bis 12 in eine Lösung aus 22 Teilen 1-(3'-Chlorphenyl)-3-methyl-5- pyrazolon,
50 Teilen Wasser und 14,0 Teilen 30 % iger Natriiunhydroxydlösung eingegossen. Die Kupplung verläuft sehr rasch. Der Farb stoff wird durch Hinzufügen von Natrium chlorid abgeschieden.
4,95 Teile des so erhältlichen Farbstoffes werden als feuchter Filterkuchen in 100 Teilen Wasser aufgeschlämmt und durch Zugabe von 5 Voltunteilen 2n-Natriumhydroxydlösungund Erwärmen gelöst.
Die etwa 80 warme Farb- stofflösung versetzt man mit 1,5 Teilen kri- stallisiertem Natriumacetat und hierauf mit 30 Teilen einer 70 warmen Kobaltsulfat- lösung mit einem Kobaltgelialt von 1,3 %a. Nach kurzer Zeit ist die Komplexbildung be endet., und die Kobaltverbindung des Farb stoffes kann durch Zugabe von Natriumchlorid und verdünnter Essigsäure abgeschieden wer den.
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 MOnoaZOf of the formula
EMI0001.0007
l: lets obalt-releasing agent act in such a way that a cobalt-containing azo dye is formed which contains two monoazo dye molecules bound to a cobalt atom in a complex.
The new dye forms a water-soluble powder that dyes wool from neutral to acetic acid baths in brown-yellow shades.
The monoazo dye used as starting material and corresponding to the above formula can be prepared by coupling the 1- (3'-chlorophenyl) -3-methyl-5-pyrazolone with methods known per se, eg. B. by means of hydrochloric acid and sodium nitrite diazotized 2-amino-l. - oxybenzene - 4 - sulfonic acid di-ss -oxyethylamide are produced.
The treatment with the cobalt-releasing agents takes place according to the present process in such a way that a cobalt-containing dye is produced which contains less than one atom of cobalt in complex binding per molecule of dye. Accordingly, the metallization is expediently carried out with such cobalt-releasing agents and by 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 a dye and / or perform the metallization in a weakly acidic to alkaline medium. Cobalt salts, such as cobalt sulfate or cobalt acetate, and optionally also freshly precipitated cobalt hydroxide, are expediently used as cobalt-releasing agents.
Example: 27.6 parts of 2-amino-l-oxybenzene-4-sulfonic acid di-, 8-o :: yäthylamid are dissolved in 50 parts of water and 14 parts of 30% hydrochloric acid and at 0 to 5 with a diazotized aqueous solution of 6.9 parts of sodium nitrite. The diazo suspension neutralized with sodium carbonate is at 10 to 12 in a solution of 22 parts 1- (3'-chlorophenyl) -3-methyl-5-pyrazolone,
Poured 50 parts of water and 14.0 parts of 30% strength sodium hydroxide solution. The coupling is very quick. The dye is deposited by adding sodium chloride.
4.95 parts of the dye obtainable in this way are slurried as a moist filter cake in 100 parts of water and dissolved by adding 5 volts of 2N sodium hydroxide solution and heating.
The approx. 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 cobalt gel of 1.3% a. After a short time, the complex formation is over, and the cobalt compound of the dye can be deposited by adding sodium chloride and dilute acetic acid.
Claims (1)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH303536T | 1951-08-07 | ||
| CH301441T | 1951-08-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH303536A true CH303536A (en) | 1954-11-30 |
Family
ID=25734354
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH303536D CH303536A (en) | 1951-08-07 | 1951-08-07 | Process for the preparation of a metal-containing azo dye. |
Country Status (1)
| Country | Link |
|---|---|
| CH (1) | CH303536A (en) |
-
1951
- 1951-08-07 CH CH303536D patent/CH303536A/en unknown
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