CH129180A - Process for the preparation of a monoazo dye. - Google Patents
Process for the preparation of a monoazo dye.Info
- Publication number
- CH129180A CH129180A CH129180DA CH129180A CH 129180 A CH129180 A CH 129180A CH 129180D A CH129180D A CH 129180DA CH 129180 A CH129180 A CH 129180A
- Authority
- CH
- Switzerland
- Prior art keywords
- yellow
- preparation
- dye
- monoazo dye
- water
- 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 3
- 239000000975 dye Substances 0.000 claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 150000008049 diazo compounds Chemical class 0.000 claims description 3
- UWLNKHDLVZEYKQ-UHFFFAOYSA-N 4-chloro-3-(3-methyl-5-oxo-4h-pyrazol-1-yl)benzenesulfonic acid Chemical compound O=C1CC(C)=NN1C1=CC(S(O)(=O)=O)=CC=C1Cl UWLNKHDLVZEYKQ-UHFFFAOYSA-N 0.000 claims description 2
- JGSAMPZLJLDOKW-UHFFFAOYSA-N 5-amino-2-chloro-4-sulfobenzoic acid Chemical compound NC1=CC(C(O)=O)=C(Cl)C=C1S(O)(=O)=O JGSAMPZLJLDOKW-UHFFFAOYSA-N 0.000 claims description 2
- 244000248349 Citrus limon Species 0.000 claims description 2
- 235000005979 Citrus limon Nutrition 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
- 210000002268 wool Anatomy 0.000 claims description 2
- 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 2
- LPXPTNMVRIOKMN-UHFFFAOYSA-M sodium nitrite Chemical compound [Na+].[O-]N=O LPXPTNMVRIOKMN-UHFFFAOYSA-M 0.000 description 2
- VMHLLURERBWHNL-UHFFFAOYSA-M Sodium acetate Chemical compound [Na+].CC([O-])=O VMHLLURERBWHNL-UHFFFAOYSA-M 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
- 239000001632 sodium acetate Substances 0.000 description 1
- 235000017281 sodium acetate Nutrition 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 235000010288 sodium nitrite Nutrition 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Landscapes
- Coloring (AREA)
Description
Verfahren zur Darstellung eines Monoazofarbstoffes. Es wurde gefunden, dass ein wertvoller gelber Monoazofarbstoff entsteht, wenn man die Diazoverbindung der 1-Amino-2-sulfo-4- chlorbeirzol-5-carbonsäur,e mit 1-(2'-Chlor-5'- sulfophenyl)-3-metliyl-5-pyrazolon kombiniert.
<I>Beispiel:</I> 50,3 kg 1-Amino-2-sulfo-4-chlorbenzol-5- carbonsäure werden in 500- Liter Wasser verteilt und nach Zusatz von 25 kg Salzsäure von 30 % mit 13,8 kg Natriumnitrit diano- tiert bei 10o.
Die Suspension der Diazover- bindung läuft in eine mit Natriumacetat ver setzte Lösung von 57,7 kg 1-(2'-Chlor-5'- solfophenyl)-3-methyl-5-pyrazolon in 500 Liter Wasser. Nach beendeter Kupplung wird der Farbstoff bei<B>60"</B> mit Salzsäure und Koch salz ausgefüllt, filtriert und getrocknet.
Der Farbstoff stellt ein gelbes Pulver dar, löslich in Wasser und konzentrierter Schwefelsäure mit zitronengelber Farbe. Er färbt auf Wolle ein grünstichiges Gelb von sehr guter Egalisierfähigkeit und grosser Lichtechtheit.
Process for the preparation of a monoazo dye. It has been found that a valuable yellow monoazo dye is formed when the diazo compound of 1-amino-2-sulfo-4-chlorbeirzol-5-carboxylic acid, e with 1- (2'-chloro-5'-sulfophenyl) -3- methyl-5-pyrazolone combined.
<I> Example: </I> 50.3 kg of 1-amino-2-sulfo-4-chlorobenzene-5-carboxylic acid are distributed in 500 liters of water and, after the addition of 25 kg of 30% hydrochloric acid, add 13.8 kg Sodium nitrite diano- tes at 10o.
The suspension of the diazo compound runs into a solution of 57.7 kg of 1- (2'-chloro-5'-solfophenyl) -3-methyl-5-pyrazolone in 500 liters of water with sodium acetate. After coupling is complete, the dye is filled in at <B> 60 "with hydrochloric acid and sodium chloride, filtered and dried.
The dye is a yellow powder, soluble in water and concentrated sulfuric acid with a lemon yellow color. It dyes wool a greenish yellow with very good leveling properties and great lightfastness.
Claims (1)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE129180X | 1926-07-29 | ||
| CH127529T | 1927-07-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH129180A true CH129180A (en) | 1928-12-01 |
Family
ID=25710913
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH129180D CH129180A (en) | 1926-07-29 | 1927-07-08 | Process for the preparation of a monoazo dye. |
Country Status (1)
| Country | Link |
|---|---|
| CH (1) | CH129180A (en) |
-
1927
- 1927-07-08 CH CH129180D patent/CH129180A/en unknown
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