CH145833A - Process for the production of a new azo dye. - Google Patents
Process for the production of a new azo dye.Info
- Publication number
- CH145833A CH145833A CH145833DA CH145833A CH 145833 A CH145833 A CH 145833A CH 145833D A CH145833D A CH 145833DA CH 145833 A CH145833 A CH 145833A
- Authority
- CH
- Switzerland
- Prior art keywords
- dye
- disulfo
- dioxy
- azo dye
- mol
- 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
- 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
- C09B45/24—Disazo or polyazo compounds
- C09B45/28—Disazo or polyazo compounds containing copper
-
- 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
- C09B33/00—Disazo and polyazo dyes of the types A->K<-B, A->B->K<-C, or the like, prepared by diazotising and coupling
- C09B33/02—Disazo dyes
- C09B33/12—Disazo dyes in which the coupling component is a heterocyclic compound
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Coloring (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
Zusatzpatent zum Hauptpatent Nr. 136650. Verfahren zur Herstellung eines neuen Azofarbstoües. Es wurde gefunden, dass man einen neuen Farbstoff erhält, wenn man auf 1 Mol. des 5,5'-Dioxy-7,7'-disulfo-1,1',2',2-dinaph- thazins der Formel
EMI0001.0007
das durch saure Kupplung von diazotierter Sulfanilsäure mit_5,5'-Dioxy-7,7'-disulfo-2,2'- dinaphthylamin und- Erwärmen des gebilde ten Reaktionsproduktes erhalten werden kann,
2 Mol. diazotierte 4-Nitro-2-amino-l- phenol-6-sulfosäure einwirken lässt und den erhaltenen Farbstoff mit kupferabgebenden Mitteln behandelt.
Der erhaltene Farbstoff ist ein schwar zes Pulver, das sich in Wasser mit rotviolet-
EMI0001.0021
Additional patent to main patent no. 136650. Process for the production of a new azo dye. It has been found that a new dye is obtained if one mole. Of the 5,5'-dioxy-7,7'-disulfo-1,1 ', 2', 2-dinaphthazine of the formula
EMI0001.0007
which can be obtained by the acidic coupling of diazotized sulfanilic acid mit_5,5'-dioxy-7,7'-disulfo-2,2'-dinaphthylamine and heating the reaction product formed,
2 mol. Diazotized 4-nitro-2-amino-1-phenol-6-sulfonic acid is allowed to act and the dye obtained is treated with copper-donating agents.
The dye obtained is a black powder that turns red-violet in water
EMI0001.0021
Claims (1)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH145833T | 1929-06-12 | ||
CH136650T | 1929-11-30 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH145833A true CH145833A (en) | 1931-03-15 |
Family
ID=25712789
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH145833D CH145833A (en) | 1929-06-12 | 1929-06-12 | Process for the production of a new azo dye. |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH145833A (en) |
-
1929
- 1929-06-12 CH CH145833D patent/CH145833A/en unknown
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