CH222152A - Process for the preparation of a new dye of the anthraquinone series. - Google Patents
Process for the preparation of a new dye of the anthraquinone series.Info
- Publication number
- CH222152A CH222152A CH222152DA CH222152A CH 222152 A CH222152 A CH 222152A CH 222152D A CH222152D A CH 222152DA CH 222152 A CH222152 A CH 222152A
- Authority
- CH
- Switzerland
- Prior art keywords
- preparation
- new dye
- anthraquinone series
- parts
- dye
- Prior art date
Links
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- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Coloring (AREA)
Description
Verfahren zur Darstellung eines neuen Farbstoffes der Anthraehinonreihe. Das vorliegende Patent betrifft ein Ver fahren zur Darstellung eines neuen Farb stoffes der Anthrachinonreihe und ist da durch gekennzeichnet, da.ss man ein Gemisch von 6,7-Dichlorchinizarin und Leuko-6,7-di- chlorchinizarin mit -Zesidin kondensiert und die erhaltene Base sulfiert.
<I>Beispiel:</I> 10 Teile 6,7-Dichlorchinizarin, 15 Teile Leuko-6,7-dichlorchinizarin, 75 Teile DZesi- din, 25 Teile Eisessig und 7,5 Teile Borsäure werden vorzugsweise unter Luftabschlass bezw. in inerter Atmosphäre so lange bei 90-140 gerührt, bis die Kondensation be endet ist. Die Base wird nach bekannten Me thoden, z.
B. durch Zusatz von Alkohol, Alkohol und Wasser oder durch Eingiessen der Kondensationsmasse in verdünnte Salz säure isoliert und gegebenenfalls umkristal lisiert. 10 Teile der getrockneten Base werden in 45 Teilen Schwefelsäuremonohydrat ge- löst und mit 30 Teilen Oleum 28/o versetzt. Es wird so lange auf 35--40' erwärmt, bis eine Probe in kaltem Wasser leicht löslich ist. Die Sulfiermasse wird hierauf auf ein Gemisch von Eis und Kochsalzlösung ge gossen, filtriert und mit Kochsalzlösung 10 neutral gewaschen.
Der so erhaltene Farb stoff färbt Wolle und Seide in grünblauen Tönen von sehr guter Echtheit an. Er löst sich in Schwefelsäure mit blauer Farbe und hat folgende Formel:
EMI0001.0030
Process for the preparation of a new dye of the anthraehinone series. The present patent relates to a process for the preparation of a new dye of the anthraquinone series and is characterized by the fact that a mixture of 6,7-dichloroquinizarine and leuco-6,7-dichloroquinizarine is condensed with -zesidine and the obtained Base sulfated.
<I> Example: </I> 10 parts of 6,7-dichloroquinizarine, 15 parts of leuco-6,7-dichloroquinizarine, 75 parts of Dzesidine, 25 parts of glacial acetic acid and 7.5 parts of boric acid are preferably removed with air. stirred in an inert atmosphere at 90-140 until the condensation has ended. The base is methods according to known Me, for.
B. isolated by adding alcohol, alcohol and water or by pouring the condensation mass in dilute hydrochloric acid and optionally recrystallized lized. 10 parts of the dried base are dissolved in 45 parts of sulfuric acid monohydrate, and 30 parts of 28% oleum are added. It is heated to 35-40 'until a sample is easily soluble in cold water. The sulphonation mass is then poured onto a mixture of ice and saline solution, filtered and washed neutral with saline solution.
The dye thus obtained dyes wool and silk in green-blue tones of very good fastness. It dissolves in sulfuric acid with a blue color and has the following formula:
EMI0001.0030
Claims (1)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH222152T | 1939-12-20 | ||
CH215662T | 1939-12-20 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH222152A true CH222152A (en) | 1942-06-30 |
Family
ID=25725744
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH222152D CH222152A (en) | 1939-12-20 | 1939-12-20 | Process for the preparation of a new dye of the anthraquinone series. |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH222152A (en) |
-
1939
- 1939-12-20 CH CH222152D patent/CH222152A/en unknown
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