CH200529A - Process for the preparation of a chromium compound of the azo dye eriochromflavin A, which is soluble in organic solvents containing hydroxyl groups. - Google Patents
Process for the preparation of a chromium compound of the azo dye eriochromflavin A, which is soluble in organic solvents containing hydroxyl groups.Info
- Publication number
- CH200529A CH200529A CH200529DA CH200529A CH 200529 A CH200529 A CH 200529A CH 200529D A CH200529D A CH 200529DA CH 200529 A CH200529 A CH 200529A
- Authority
- CH
- Switzerland
- Prior art keywords
- soluble
- chromium compound
- azo dye
- eriochromflavin
- organic solvents
- Prior art date
Links
- 150000001845 chromium compounds Chemical class 0.000 title claims description 7
- 239000000987 azo dye Substances 0.000 title claims description 6
- 238000000034 method Methods 0.000 title claims description 5
- 239000003960 organic solvent Substances 0.000 title claims description 5
- 238000002360 preparation method Methods 0.000 title claims description 3
- 125000002887 hydroxy group Chemical group [H]O* 0.000 title 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 8
- 150000001875 compounds Chemical class 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 239000003085 diluting agent Substances 0.000 claims description 2
- 238000010438 heat treatment Methods 0.000 claims description 2
- 150000003839 salts Chemical class 0.000 claims 1
- 239000002904 solvent Substances 0.000 claims 1
- 150000001298 alcohols Chemical class 0.000 description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- 239000000975 dye Substances 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- -1 Schultz Substances 0.000 description 1
- 239000002253 acid Substances 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
- 239000003086 colorant Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000003973 paint 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
- C09B45/48—Preparation from other complex metal compounds of azo dyes
-
- 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
- C09B5/00—Dyes with an anthracene nucleus condensed with one or more heterocyclic rings with or without carbocyclic rings
- C09B5/02—Dyes with an anthracene nucleus condensed with one or more heterocyclic rings with or without carbocyclic rings the heterocyclic ring being only condensed in peri position
- C09B5/20—Flavanthrones
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Paints Or Removers (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
<B>Zusatzpatent</B> zum Hauptpatent Nr. 197284. Verfahren zur Herstellung einer in hydroaylgruppenhaltigen organischen Lösungsmitteln löslichen Chromverbindung des Azofarbstoffes ErlochromIlavin A.
Gegenstand dieses Patentes isst ein Ver- fahren zum Darstellung einer in Ilydrogyl- gruppenhaltigen organischen Lösungsmitteln löslichen Chromverbindung des Azofarb- stoffes Eriochromflavm A.
Behandelt man, zweckmässig unter Erhitzen, die zum Bei- spiel nach üblichem Verfahren dargestellte, in Wasser und organischen Lösungsmitteln unlösliche .gelbbraune Chromverbindung des Azofaebstoffes Eriochromflavin A mit @Salz- säure oder Verbindungen, die Salzsäure ab spalten, in Gegenwart von organischen Ver dünnungsmitteln,
so erhält man nach dem Verjagen des Verdünnungsmittels ein braunes Pulver, das in niederen Alkoholen sehr gut löslich ist und dessen Lackfärbungen sich durch sehr gute Lichtechtheit auszeichnen. <I>Beispiel:</I> 100 Teile der in Wasser und Alkohol sehwerlöslichen Chromverbindung des Azo- farbstoffes Eriochromflavin A (Aminosali- cyls:
äure-azo-salicyl,säure, Schultz, Farbstoff tabelle 1931, Nr. 2158), die man durch Chro- mieren des Farbstoffes mit Chromacetat und dergl. in Wasser erhält, werden in 800 Tei len Alkohol beÄ 70 bis 78 C angeschlämmt und innert 80 Minuten 40 Teile 313, % iger Salzsäure unter Rühren tropfenweise zuge geben.
Die anfänglich unlösliche Verbindung geht dabei mit brauner Farbe in Lösung. Durch Abdestilliemen dies Alkohols, und Trocknen im Vakuum erhält man die neue, in niederen Alkoholen zu zehn und mehr Prozent leicht lösliche Verbindung als brau nes Pulver.
<B> Additional patent </B> to main patent no. 197284. Process for the production of a chromium compound of the azo dye ErlochromIlavin A. which is soluble in organic solvents containing hydroayl groups.
The subject of this patent is a process for the preparation of a chromium compound of the azo dye Eriochromflavm A which is soluble in Ilydrogyl group-containing organic solvents.
If, expediently with heating, the yellow-brown chromium compound of the azo fabric eriochromflavin A, which is prepared, for example by conventional methods and is insoluble in water and organic solvents, is treated with hydrochloric acid or compounds that split off hydrochloric acid in the presence of organic thinners
Thus, after the diluent has been driven off, a brown powder is obtained which is very soluble in lower alcohols and whose paint colors are characterized by very good lightfastness. <I> Example: </I> 100 parts of the chromium compound of the azo dye eriochromflavin A, which is visually soluble in water and alcohol (aminosalicyls:
acid-azo-salicylic, acid, Schultz, dye table 1931, no. 2158), which is obtained by chroming the dye with chromium acetate and the like in water, are suspended in 800 parts of alcohol at 70 to 78 ° C and inert 80 minutes give 40 parts of 313% hydrochloric acid dropwise with stirring.
The initially insoluble compound goes into solution with a brown color. By distilling off this alcohol and drying it in a vacuum, the new compound, which is easily soluble in lower alcohols to ten or more percent, is obtained as a brown powder.
Claims (1)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH200529T | 1937-02-06 | ||
| CH197284T | 1937-02-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH200529A true CH200529A (en) | 1938-10-15 |
Family
ID=25722967
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH200529D CH200529A (en) | 1937-02-06 | 1937-02-06 | Process for the preparation of a chromium compound of the azo dye eriochromflavin A, which is soluble in organic solvents containing hydroxyl groups. |
Country Status (1)
| Country | Link |
|---|---|
| CH (1) | CH200529A (en) |
-
1937
- 1937-02-06 CH CH200529D patent/CH200529A/en unknown
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