CH111925A - Process for the preparation of a new dye. - Google Patents
Process for the preparation of a new dye.Info
- Publication number
- CH111925A CH111925A CH111925DA CH111925A CH 111925 A CH111925 A CH 111925A CH 111925D A CH111925D A CH 111925DA CH 111925 A CH111925 A CH 111925A
- Authority
- CH
- Switzerland
- Prior art keywords
- dye
- preparation
- new dye
- parts
- greenish blue
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims description 3
- 238000002360 preparation method Methods 0.000 title claims description 3
- 239000000975 dye Substances 0.000 claims description 13
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 6
- 239000002253 acid Substances 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 239000003513 alkali Substances 0.000 claims description 2
- 239000000843 powder Substances 0.000 claims description 2
- 235000011121 sodium hydroxide Nutrition 0.000 claims description 2
- 210000002268 wool Anatomy 0.000 claims description 2
- -1 di-azo compound Chemical class 0.000 claims 1
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 6
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 4
- 150000008049 diazo compounds Chemical class 0.000 description 3
- 229910052500 inorganic mineral Inorganic materials 0.000 description 2
- 239000011707 mineral Substances 0.000 description 2
- 235000010755 mineral Nutrition 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 235000011118 potassium hydroxide Nutrition 0.000 description 2
- 239000011780 sodium chloride Substances 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- 241001024304 Mino Species 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 239000011541 reaction mixture Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
- C09B45/00—Complex metal compounds of azo dyes
- C09B45/02—Preparation from dyes containing in o-position a hydroxy group and in o'-position hydroxy, alkoxy, carboxyl, amino or keto groups
- C09B45/14—Monoazo compounds
- C09B45/16—Monoazo compounds containing chromium
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
Verfahren zur Darstellung eines neuen Farbstoffes. Es wurde gefunden, .dass man einen neuen Farbstoff erhält, wenn man das 5,8-Dichlor-a- naphthol mit :der Diazoverbindung aus 1- Oxy naphthalin-8-sulfamid-2 - amino - 4 -sulf o- säure kuppelt und .den so erhaltenen Farb stoff mit Alkalichromit behandelt.
Der neue Farbstoff bildet ein schwärzliches Pulver, das sich in Wasser mit grünstickig blauer, in verdünnter Natronlauge mit violetter Farbe löst. Er färbt Wolle aus saurem Bade in sehr egalen, echten grünstickig blauen Tönen an. Beispiel:
In ein Gemisch von 60 Teilen Kalihydrat, 46 Teilen Wasser und 21,3 Teilen 5,8-Di- chlor-a-naphthol trägt man unter Rühren bei mittlerer Temperatur (ca. 50 ) 32,9 Teile der Diazoverbindung aus 1-Oxynaphthalin-8-sul- famid-2-amino-4-sulfosäure in Form einer ca. 30 %igen Paste ein. Man rührt noch län gere Zeit bei dieser Temperatur, bis die Di- azoverbin.dung verschwunden ist.
Hierauf verdünnt man mit 350 Teilen Wasser, stellt mit nicht zii verdünnter Mineralsäure neu- tral und f6.llt den gebildeten Farbstoff mit Kochsalz aus.
In 54 Teile einer 16,2 % Cr203 enthalten den Cliromoxydhydratpaste werden nassh und nach 60 Teile festes Ätzkali eingetragen, bis sämtliches Cr203 in Lösung gegangen ist: Hierauf setzt man 54,2 Teile des Farbstof fes aus 5,8-Dichlor-a-naphthol und 1-Oxy- naphthalin-8-sulfamid-2-a,mino - 4 - sulfosäure hinzu und erhitzt die Masse so lange auf 80 , bis sämtliches Chrom vom Farbstoff aufgenommen ist. Dann verdünnt man das Reaktionsgemisch mit Wasser, stellt mit Mineralsäure neutral und salzt den erhaltenen Farbstoff mit Kochsalz aus.
Process for the preparation of a new dye. It has been found that .that a new dye is obtained if the 5,8-dichloro-anaphthol is coupled with: the diazo compound of 1-oxynaphthalene-8-sulfamide-2-amino-4-sulfo acid and . Treated the dye thus obtained with alkali chromite.
The new dye forms a blackish powder that dissolves in water with a greenish blue color and in dilute caustic soda with a purple color. He dyes wool from an acid bath in very even, genuine greenish blue tones. Example:
32.9 parts of the diazo compound from 1-oxynaphthalene are added to a mixture of 60 parts of potassium hydrate, 46 parts of water and 21.3 parts of 5,8-dichloro-a-naphthol with stirring at medium temperature (approx. 50) 8-sulphamide-2-amino-4-sulphonic acid in the form of an approx. 30% paste. The mixture is stirred for a longer time at this temperature until the diazo compound has disappeared.
It is then diluted with 350 parts of water, neutralized with mineral acid that is not dilute, and the dye formed is precipitated with sodium chloride.
In 54 parts of a 16.2% Cr203 containing the Cliromoxydhydratpaste wet and after 60 parts solid caustic potash, until all the Cr203 has gone into solution: 54.2 parts of the dye are then put from 5,8-dichloro-a-naphthol and 1-oxynaphthalene-8-sulfamid-2-a, mino - 4 - sulfonic acid and heat the mass to 80 until all the chromium has been absorbed by the dye. The reaction mixture is then diluted with water, made neutral with mineral acid and the dye obtained is salted out with sodium chloride.
Claims (1)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH111925T | 1924-03-20 | ||
| CH111565T | 1924-03-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH111925A true CH111925A (en) | 1925-09-16 |
Family
ID=25707883
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH111925D CH111925A (en) | 1924-03-20 | 1924-03-20 | Process for the preparation of a new dye. |
Country Status (1)
| Country | Link |
|---|---|
| CH (1) | CH111925A (en) |
-
1924
- 1924-03-20 CH CH111925D patent/CH111925A/en unknown
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