DE46375C - Process for the preparation of dyes from the diazo compounds of phenylene and toluene brown - Google Patents
Process for the preparation of dyes from the diazo compounds of phenylene and toluene brownInfo
- Publication number
- DE46375C DE46375C DENDAT46375D DE46375DA DE46375C DE 46375 C DE46375 C DE 46375C DE NDAT46375 D DENDAT46375 D DE NDAT46375D DE 46375D A DE46375D A DE 46375DA DE 46375 C DE46375 C DE 46375C
- Authority
- DE
- Germany
- Prior art keywords
- phenylene
- dyes
- preparation
- diazo compounds
- toluene
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- YXFVVABEGXRONW-UHFFFAOYSA-N toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 title claims description 10
- 239000000975 dye Substances 0.000 title claims description 5
- 150000008049 diazo compounds Chemical class 0.000 title claims description 4
- 125000000843 phenylene group Chemical group C1(=C(C=CC=C1)*)* 0.000 title claims description 3
- VOZKAJLKRJDJLL-UHFFFAOYSA-N 2,4-Diaminotoluene Chemical compound CC1=CC=C(N)C=C1N VOZKAJLKRJDJLL-UHFFFAOYSA-N 0.000 claims description 4
- WZCQRUWWHSTZEM-UHFFFAOYSA-N M-Phenylenediamine Chemical group NC1=CC=CC(N)=C1 WZCQRUWWHSTZEM-UHFFFAOYSA-N 0.000 claims description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-N HCl Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 6
- 229940018564 M-PHENYLENEDIAMINE Drugs 0.000 description 2
- 229920000742 Cotton Polymers 0.000 description 1
- 239000000987 azo dye Substances 0.000 description 1
- IOVCWXUNBOPUCH-UHFFFAOYSA-M nitrite anion Chemical compound [O-]N=O IOVCWXUNBOPUCH-UHFFFAOYSA-M 0.000 description 1
- ZAOCWQZQPKGTRN-UHFFFAOYSA-N nitrous acid;sodium Chemical compound [Na].ON=O ZAOCWQZQPKGTRN-UHFFFAOYSA-N 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 235000002639 sodium chloride Nutrition 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- FAPWRFPIFSIZLT-UHFFFAOYSA-M sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
- C09B39/00—Other azo dyes prepared by diazotising and coupling
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Color Printing (AREA)
Description
KAISERLICHESIMPERIAL
PATENTAMT.PATENT OFFICE.
und Toluylenbrauns.and toluene brown.
Bekanntlich entstehen aus m-Phenylendiamin bezw. m-Toluylendiamin, salpetrigsaurem Natron und Salzsäure das Phenylen- bezw. Toluylenbraun. Diese Farbstoffe lassen sich nun in Diazoverbindungen überführen und letztere mit m-Phenylendiamin und m-Toluylendiamin vereinigen. Die so entstehenden neuen Azofarbstoffe färben Baumwolle mit und ohne Beize tiefbraun.As is known, arise from m-phenylenediamine respectively. m-Toluylenediamine, nitrous acid sodium and hydrochloric acid, the phenylene respectively. Toluene brown. These dyes can now be used in Transfer diazo compounds and combine the latter with m-phenylenediamine and m-tolylenediamine. The resulting new azo dyes dye cotton with and without stain a deep brown.
Beispiel: 10 kg reines Toluylenbraun werden in etwa 500 1 Wasser gelöst und nach Zusatz von 4,8 kg Salzsäure (200 B.) in der Kälte (50 C.) mit einer Lösung von 2,5 kg Nitrit versetzt. In diese Lösung der Diazoverbindung des Toluylenbrauns läfst man nach einiger Zeit eine stark abgekühlte Lösung von 4,4 kg Toluylendiamin einfliefsen. Der als dunkelbrauner Niederschlag ausfallende Farbstoff wird nach mehrstündigem Stehen durch Salzsäurezusatz in Lösung gebracht, mit Kochsalz gefällt, abfiltrirt, geprefst und getrocknet.Example: 10 kg of pure Toluylenbraun are dissolved in about 500 1 of water and (20 0 B.) was added after the addition of 4.8 kg of hydrochloric acid in the cold (5 0 C.) with a solution of 2.5 kg nitrite. After some time, a strongly cooled solution of 4.4 kg of toluene diamine is run into this solution of the diazo compound of toluene brown. After standing for several hours, the dye which separates out as a dark brown precipitate is brought into solution by adding hydrochloric acid, precipitated with common salt, filtered off, pressed and dried.
Claims (1)
Publications (1)
Publication Number | Publication Date |
---|---|
DE46375C true DE46375C (en) |
Family
ID=321487
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DENDAT46375D Active DE46375C (en) | Process for the preparation of dyes from the diazo compounds of phenylene and toluene brown |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE46375C (en) |
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0
- DE DENDAT46375D patent/DE46375C/en active Active
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