CH182048A - Process for the production of a chromium-containing dye. - Google Patents
Process for the production of a chromium-containing dye.Info
- Publication number
- CH182048A CH182048A CH182048DA CH182048A CH 182048 A CH182048 A CH 182048A CH 182048D A CH182048D A CH 182048DA CH 182048 A CH182048 A CH 182048A
- Authority
- CH
- Switzerland
- Prior art keywords
- chromium
- dye
- red
- sodium hydroxide
- production
- Prior art date
Links
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 title claims description 10
- 229910052804 chromium Inorganic materials 0.000 title claims description 10
- 239000011651 chromium Substances 0.000 title claims description 10
- 238000000034 method Methods 0.000 title claims description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 15
- 239000000975 dye Substances 0.000 claims description 7
- 239000000987 azo dye Substances 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- LSNNMFCWUKXFEE-UHFFFAOYSA-N Sulfurous acid Chemical compound OS(O)=O LSNNMFCWUKXFEE-UHFFFAOYSA-N 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
- 238000006396 nitration reaction Methods 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
- 239000003795 chemical substances by application Substances 0.000 description 2
- QOWZHEWZFLTYQP-UHFFFAOYSA-K chromium(3+);triformate Chemical compound [Cr+3].[O-]C=O.[O-]C=O.[O-]C=O QOWZHEWZFLTYQP-UHFFFAOYSA-K 0.000 description 2
- QDOXWKRWXJOMAK-UHFFFAOYSA-N dichromium trioxide Chemical compound O=[Cr]O[Cr]=O QDOXWKRWXJOMAK-UHFFFAOYSA-N 0.000 description 2
- BDAGIHXWWSANSR-UHFFFAOYSA-N methanoic acid Natural products OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 description 2
- OSWFIVFLDKOXQC-UHFFFAOYSA-N 4-(3-methoxyphenyl)aniline Chemical compound COC1=CC=CC(C=2C=CC(N)=CC=2)=C1 OSWFIVFLDKOXQC-UHFFFAOYSA-N 0.000 description 1
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 1
- WYYQVWLEPYFFLP-UHFFFAOYSA-K chromium(3+);triacetate Chemical compound [Cr+3].CC([O-])=O.CC([O-])=O.CC([O-])=O WYYQVWLEPYFFLP-UHFFFAOYSA-K 0.000 description 1
- GRWVQDDAKZFPFI-UHFFFAOYSA-H chromium(III) sulfate Chemical compound [Cr+3].[Cr+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O GRWVQDDAKZFPFI-UHFFFAOYSA-H 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 235000019253 formic acid Nutrition 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 235000002639 sodium chloride Nutrition 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- SWGJCIMEBVHMTA-UHFFFAOYSA-K trisodium;6-oxido-4-sulfo-5-[(4-sulfonatonaphthalen-1-yl)diazenyl]naphthalene-2-sulfonate Chemical compound [Na+].[Na+].[Na+].C1=CC=C2C(N=NC3=C4C(=CC(=CC4=CC=C3O)S([O-])(=O)=O)S([O-])(=O)=O)=CC=C(S([O-])(=O)=O)C2=C1 SWGJCIMEBVHMTA-UHFFFAOYSA-K 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 Herstellung eines ehromhaltigen Farbstoffes. Es wurde gefunden, dass ein chromhaltiger Azofarbstoff hergestellt werden kann, wenn man den Azofarbstoff, der durch Kuppeln von dianotierter 4-Nitro-2-acnino-l-oxybenzol- 6-sulfonsäure mit 2-Oxynaphthalin und Ni- trierung des erhaltenen Farbstoffes herge stellt wird, mit chromabgebenden Mitteln behandelt.
Der erhaltene chromhaltige Azofarbstoff stellt ein violettschwarzes Pulver dar, das sich in Wasser mit violettroter, in 10 o;oiger Sodalösung, sowie in 10 %iger Natronlauge mit braunroter Farbe löst. In konzentrierter Schwefelsäure löst er sich mit blaustichig roter Farbe. Er färbt Wolle aus schwefel saurem Bade in braunroten Tönen von sehr guten Echtheiten.
<I>Beispiel:</I> 45,6 Teile des nitrierten o-Oxyazofarb- etOffes aus , dianotierter 4-Nitro-2-amino-l- \OZYbenzol-6-sulfonsäure und 2-Oxynaphthalin werden in 800 Teilen Wasser gelöst, mit 120 Vol.-Teilen einer Chromformiatlösung, ent sprechend 9,2 Teilen Cr2O3, versetzt und rückfliessend etwa 16 Stunden gekocht.
Durch Beigabe von Kochsalz wird der neue chrom- haltige Farbstoff abgeschieden; dann wird filtriert, in verdünnter Natronlauge gelöst und nach dem Neutralisieren mit verdünnter Ameisensäure erneut ausgesalzen. Hierauf filtriert man abermals und trocknet.
Zu demselben chromhaltigen Farbstoffe gelangt man, wenn statt des Chromformiats andere chromabgebende Mittel,wiezum Beispiel Chromacetat oder Chromsulfat, verwendet werden.
Process for the preparation of a dye containing Ehrom. It has been found that a chromium-containing azo dye can be produced if the azo dye which is produced by coupling dianotated 4-nitro-2-acnino-1-oxybenzene-6-sulfonic acid with 2-oxynaphthalene and nitration of the dye obtained herge is treated with chromium-releasing agents.
The chromium-containing azo dye obtained is a purple-black powder which dissolves in water with purple-red, in 10% sodium hydroxide solution, and in 10% sodium hydroxide solution with a brown-red color. It dissolves in concentrated sulfuric acid with a bluish red color. It dyes wool from a sulphurous acid bath in brown-red shades with very good fastness properties.
<I> Example: </I> 45.6 parts of the nitrated o-Oxyazofarb- etOffes from dianotated 4-nitro-2-amino-1- \ OZYbenzene-6-sulfonic acid and 2-oxynaphthalene are dissolved in 800 parts of water, 120 parts by volume of a chromium formate solution, corresponding to 9.2 parts of Cr2O3, are added and refluxed for about 16 hours.
The new chromium-containing dye is deposited by adding table salt; it is then filtered, dissolved in dilute sodium hydroxide solution and, after neutralization, salted out again with dilute formic acid. It is then filtered again and dried.
The same chromium-containing colorant is obtained if other chromium-releasing agents, such as chromium acetate or chromium sulfate, are used instead of the chromium formate.
Claims (1)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH182048T | 1935-01-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH182048A true CH182048A (en) | 1936-01-31 |
Family
ID=4431270
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH182048D CH182048A (en) | 1935-01-24 | 1935-01-24 | Process for the production of a chromium-containing dye. |
Country Status (1)
| Country | Link |
|---|---|
| CH (1) | CH182048A (en) |
-
1935
- 1935-01-24 CH CH182048D patent/CH182048A/en unknown
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