CH200533A - Process for the production of a new azo dye. - Google Patents
Process for the production of a new azo dye.Info
- Publication number
- CH200533A CH200533A CH200533DA CH200533A CH 200533 A CH200533 A CH 200533A CH 200533D A CH200533D A CH 200533DA CH 200533 A CH200533 A CH 200533A
- Authority
- CH
- Switzerland
- Prior art keywords
- azo dye
- production
- new
- new azo
- dye
- Prior art date
Links
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
- C09B31/00—Disazo and polyazo dyes of the type A->B->C, A->B->C->D, or the like, prepared by diazotising and coupling
- C09B31/02—Disazo dyes
- C09B31/06—Disazo dyes from a coupling component "C" containing a directive hydroxyl group
Description
<B>Zusatzpatent</B> zum Hauptpatent Nr. 198138. Verfahren zur Verstellung eines neuen Azofarbstoffes. Es wurde gefunden, dass man einen neuen Azofarbstoff erhält, wenn man auf p-tert: Amylphenol diazotiertes 4-Amino-3.2'-di- methyl-1 . 1'-azobenzol einwirken läBt.
Der neue Farbstoff stellt ein braunes Pul ver dar; auf Baumwolle hergestellt erzeugt der neue Farbstoff gelbbraune Töne.
<I>Beispiel:</I> 22,6 Teile 4-Amino-3.2'-dimethyl-1 .1'- azobenzol werden wie üblich diazotiert. Die filtrierte Diazoniumlösung lässt man ein fliessen in eine Lösung von 16,4 Teilen p-tert. Amylphenol, 10 Teilen Natriumhydrogyd, 5 Teilen Natriumcarbonat in 200 Teilen Wasser.
Der gebildete Farbstoff fällt sofort aus, wird filtriert, gewaschen und getrocknet. Er bildet ein braunes Pulver, das aus Essig ester kristallisiert bei 125 bis 127 schmilzt.
<B> Additional patent </B> to main patent no. 198138. Process for adjusting a new azo dye. It has been found that a new azo dye is obtained if 4-amino-3.2'-dimethyl-1 diazotized on p-tert: amylphenol. 1'-azobenzene can act.
The new dye is a brown powder; Made on cotton, the new dye creates yellow-brown tones.
<I> Example: </I> 22.6 parts of 4-amino-3.2'-dimethyl-1 .1'-azobenzene are diazotized as usual. The filtered diazonium solution is allowed to flow into a solution of 16.4 parts of p-tert. Amylphenol, 10 parts of sodium hydrogen, 5 parts of sodium carbonate in 200 parts of water.
The dye formed precipitates immediately and is filtered, washed and dried. It forms a brown powder, which crystallizes from ethyl acetate and melts at 125 to 127.
Claims (1)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH198138T | 1936-11-16 | ||
CH200533T | 1936-11-16 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH200533A true CH200533A (en) | 1938-10-15 |
Family
ID=25723067
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH200533D CH200533A (en) | 1936-11-16 | 1936-11-16 | Process for the production of a new azo dye. |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH200533A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3045004A (en) * | 1959-04-16 | 1962-07-17 | Acna | Disazo dyes |
US3090780A (en) * | 1959-12-15 | 1963-05-21 | Acna | Disazo dyes |
-
1936
- 1936-11-16 CH CH200533D patent/CH200533A/en unknown
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3045004A (en) * | 1959-04-16 | 1962-07-17 | Acna | Disazo dyes |
US3090780A (en) * | 1959-12-15 | 1963-05-21 | Acna | Disazo dyes |
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