CH192982A - Process for the production of a new azo dye. - Google Patents
Process for the production of a new azo dye.Info
- Publication number
- CH192982A CH192982A CH192982DA CH192982A CH 192982 A CH192982 A CH 192982A CH 192982D A CH192982D A CH 192982DA CH 192982 A CH192982 A CH 192982A
- Authority
- CH
- Switzerland
- Prior art keywords
- production
- azo dye
- reddish
- new azo
- new
- Prior art date
Links
- 239000000987 azo dye Substances 0.000 title claims description 4
- 238000000034 method Methods 0.000 title claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 239000000975 dye Substances 0.000 claims description 5
- BGUREQRVHBTMGK-UHFFFAOYSA-N 5-amino-2-dodecylbenzenesulfonic acid Chemical compound CCCCCCCCCCCCC1=CC=C(N)C=C1S(O)(=O)=O BGUREQRVHBTMGK-UHFFFAOYSA-N 0.000 claims description 3
- 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
- 239000000243 solution Substances 0.000 description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 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
- LPXPTNMVRIOKMN-UHFFFAOYSA-M sodium nitrite Chemical compound [Na+].[O-]N=O LPXPTNMVRIOKMN-UHFFFAOYSA-M 0.000 description 2
- 159000000000 sodium salts Chemical class 0.000 description 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000012670 alkaline solution Substances 0.000 description 1
- 150000008049 diazo compounds Chemical class 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 150000003839 salts Chemical class 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 Herstellung eines neuen Azofarbstoffes. Gemäss der vorliegenden Erfindung erhält man einen neuen Azofarbstoff durch Kup peln von diazotierter p-Dodecylanilin-m-sul- fonsäure mit 2-N-benzoyl-N-ss-hydrogyäthyl- amin-8-naphtol-6-sulfonsäure in einem wäs serigen alkalischen Medium.
<I>Beispiel:</I> Eine Lösung von 36,3 Teilen des Na triumsalzes der p - Dodecylanilin - m - sulfon- säure in 400 Teilen warmen Wasser, das 6,9 Teile Natriumnitrit enthält, wird lang sam unter gutem Umrühren einem Gemisch von 650 Teilen Wasser und 130 Teilen 10 % iger Salzsäure bei 5 bis<B>10'</B> C zugesetzt.
Die Suspension der Diazoverbindung wird dann bei 5 C unter Umrühren einer Lösung von 4-0,9 Teilen des Natriumsalzes der 2-N benzoyl-N-ss-hydrogyäthylamin-8-naphtol-6- sul2onsäure und 31 Teilen wasserfreiem Na- triumkarbonat in 500 Teilen Wasser zuge setzt. Die ]Kupplung geschieht rasch und nach Vollendung wirrt der Farbstoff ab filtriert, mit 5%igem Salzwasser gewaschen und getrocknet.
Der neue Farbstoff trocknet zu einem dunkelbraunen Pulver, das sich in heissem Wasser löst, eine rötlich-braune Lösung er gebend, und das in konzentrierter Schwefel säure eine rote Lösung@ergibt. Er färbt Wolle in rötlich-braunen Tönen von guter Haltbar keit bei strengem Waschen und sehr guter Haltbarkeit beim Walken und bei Licht.
Process for the production of a new azo dye. According to the present invention, a new azo dye is obtained by coupling diazotized p-dodecylaniline-m-sulphonic acid with 2-N-benzoyl-N-ss-hydrogyäthylamine-8-naphthol-6-sulphonic acid in an aqueous alkaline solution Medium.
<I> Example: </I> A solution of 36.3 parts of the sodium salt of p - dodecylaniline - m - sulfonic acid in 400 parts of warm water, which contains 6.9 parts of sodium nitrite, is slowly stirred into a Mixture of 650 parts of water and 130 parts of 10% hydrochloric acid at 5 to 10 ° C was added.
The suspension of the diazo compound is then stirred at 5 ° C. with a solution of 4-0.9 parts of the sodium salt of 2-N-benzoyl-N-ß-hydrogyethylamine-8-naphthol-6-sul2onic acid and 31 parts of anhydrous sodium carbonate in 500 ml Parts of water are added. The] coupling takes place quickly and after completion, the dye is filtered off, washed with 5% salt water and dried.
The new dye dries to a dark brown powder, which dissolves in hot water, giving a reddish-brown solution, and which in concentrated sulfuric acid gives a red solution @. It dyes wool in reddish-brown tones that will last well when washed thoroughly and very good when milled and light.
Claims (1)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB192982X | 1935-08-30 | ||
| CH189409T | 1936-08-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH192982A true CH192982A (en) | 1937-09-15 |
Family
ID=25721786
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH192982D CH192982A (en) | 1935-08-30 | 1936-08-14 | Process for the production of a new azo dye. |
Country Status (1)
| Country | Link |
|---|---|
| CH (1) | CH192982A (en) |
-
1936
- 1936-08-14 CH CH192982D patent/CH192982A/en unknown
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