CH106930A - Process for the preparation of a monoazo dye. - Google Patents
Process for the preparation of a monoazo dye.Info
- Publication number
- CH106930A CH106930A CH106930DA CH106930A CH 106930 A CH106930 A CH 106930A CH 106930D A CH106930D A CH 106930DA CH 106930 A CH106930 A CH 106930A
- Authority
- CH
- Switzerland
- Prior art keywords
- preparation
- dye
- monoazo dye
- water
- dichloro
- Prior art date
Links
- 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 title claims description 4
- 238000000034 method Methods 0.000 title claims description 4
- 238000002360 preparation method Methods 0.000 title claims description 3
- 239000000975 dye Substances 0.000 claims description 9
- 239000002253 acid Substances 0.000 claims description 2
- 125000003172 aldehyde group Chemical group 0.000 claims description 2
- 230000008878 coupling Effects 0.000 claims description 2
- 238000010168 coupling process Methods 0.000 claims description 2
- 238000005859 coupling reaction Methods 0.000 claims description 2
- 150000008049 diazo compounds Chemical class 0.000 claims description 2
- 239000000835 fiber Substances 0.000 claims description 2
- 239000000049 pigment Substances 0.000 claims description 2
- 210000002268 wool Anatomy 0.000 claims description 2
- 230000002378 acidificating effect Effects 0.000 claims 1
- 239000003513 alkali Substances 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- LPXPTNMVRIOKMN-UHFFFAOYSA-M sodium nitrite Chemical compound [Na+].[O-]N=O LPXPTNMVRIOKMN-UHFFFAOYSA-M 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical class Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 1
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 1
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 1
- HUMNYLRZRPPJDN-UHFFFAOYSA-N benzenecarboxaldehyde Natural products O=CC1=CC=CC=C1 HUMNYLRZRPPJDN-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- QNGNSVIICDLXHT-UHFFFAOYSA-N para-ethylbenzaldehyde Natural products CCC1=CC=C(C=O)C=C1 QNGNSVIICDLXHT-UHFFFAOYSA-N 0.000 description 1
- 235000002639 sodium chloride Nutrition 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 235000010288 sodium nitrite Nutrition 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
Landscapes
- Coloring (AREA)
Description
Verfahren zur Darstellung eines Monoazofarbstoffes. In weiterer Ausbildung des Verfahrens des Hauptpatentes wurde gefunden, dass man durch Kuppeln der Diazoverbindung aus m-Amidobenzaldehyd mit einem Molekül 2'- 5'-Dichlor -4'-sulfophenylpyrazolon- 3- car- bonsäure einen noch die freie Aldehydgruppe enthaltenden Monoazofarbstoff erhält, wel cher als Pigmentfarbstoff sehr geeignet ist, aber auch die tierische Faser aus saurem Bade in sehr klaren grüngelben, alkali-,
wasser-, wasch-, walk- und lichtechten Tönen anfärbt und zum Wolldruck geeignet ist.
<I>Beispiel:</I> 36,3 kg m-Amidöbenzaldehyd werden in Form des salzsauren Salzes in Wasser gelöst. Nachdem diese Lösung in bekannter Weise durch eine Lösung von 20,7 kg Natriumnitrit in 150 Liter Wasser bei 0 bis 5 diazotiert worden ist, wird, wie üblich, mit einer Lösung von 105,9 kg 2'- 5'-Dichlor - 4'-sulfophenylpyrazolon - 3- car- bonsäure in 600 Liter Wasser und 40 kg calcinierter Soda bei 0 bis 5 gekuppelt. Die Farbstöffbildung tritt sofort ein und ist nach kurzem Nachrühren bei 20 bis 25 be endet.
Der Farbstoff wird durch Kochsalz vollständig ausgesalzen, filtriert, gewaschen und getrocknet.
Process for the preparation of a monoazo dye. In a further development of the process of the main patent, it was found that by coupling the diazo compound from m-amidobenzaldehyde with a molecule of 2'- 5'-dichloro -4'-sulfophenylpyrazolone-3-carboxylic acid, a monoazo dye still containing the free aldehyde group is obtained, which is very suitable as a pigment, but also the animal fiber from acid bath in very clear green-yellow, alkaline,
dyes water-, wash-, mill- and lightfast shades and is suitable for wool printing.
<I> Example: </I> 36.3 kg of m-amido benzaldehyde are dissolved in water in the form of the hydrochloric acid salt. After this solution has been diazotized in a known manner by a solution of 20.7 kg of sodium nitrite in 150 liters of water at 0 to 5, it is, as usual, with a solution of 105.9 kg of 2'- 5'-dichloro - 4 ' -sulfophenylpyrazolon - 3-carboxylic acid in 600 liters of water and 40 kg of calcined soda at 0 to 5 coupled. The dye formation occurs immediately and ends after brief stirring at 20 to 25.
The dye is completely salted out with common salt, filtered, washed and dried.
Claims (1)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE106930X | 1922-10-12 | ||
| CH105235T | 1923-10-11 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH106930A true CH106930A (en) | 1924-09-16 |
Family
ID=25706826
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH106930D CH106930A (en) | 1922-10-12 | 1923-10-11 | Process for the preparation of a monoazo dye. |
Country Status (1)
| Country | Link |
|---|---|
| CH (1) | CH106930A (en) |
-
1923
- 1923-10-11 CH CH106930D patent/CH106930A/en unknown
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