CH189873A - Process for the production of a new sulfur-containing dye. - Google Patents

Process for the production of a new sulfur-containing dye.

Info

Publication number
CH189873A
CH189873A CH189873DA CH189873A CH 189873 A CH189873 A CH 189873A CH 189873D A CH189873D A CH 189873DA CH 189873 A CH189873 A CH 189873A
Authority
CH
Switzerland
Prior art keywords
sulfur
production
new
containing dye
dye
Prior art date
Application number
Other languages
German (de)
Inventor
Gesellschaft Fuer Chemis Basel
Original Assignee
Chem Ind Basel
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Chem Ind Basel filed Critical Chem Ind Basel
Publication of CH189873A publication Critical patent/CH189873A/en

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
    • C09B49/00—Sulfur dyes

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Coloring (AREA)

Description

  

  Verfahren zur Herstellung eines neuen     schwefelhaltigen        Farbstoffes.            Es    wurde gefunden,     @dass    man einen neuen       schwefelhaltigen    Farbstoff erhält, wenn man  das     Indophenol,        das    aus     Carbazol    und     p-Ni-          trosophenol    erhältlich ist, zunächst mit Säu  ren und hierauf     mit    schwefelnd wirkenden       Mitteln    behandelt.  



  Der neue Farbstoff     stellt    ein dunkles  Pulver dar, das     in    Wasser unlöslich ist,     in     Schwefelsäure sich mit stumpfer grünblauer       Farbe    löst und     Baumwolle    aus     schwefel-          natriumhaltigem    Bade in schwarzen, chlor  echten Tönen färbt.

      <I>Beispiel:</I>    13,5 Teile des     Indophenols    aus     Carbazol     und     p-Nitrosophenol    werden     in    300     Vol.-Teile     einer 2 %     igen    Schwefelsäure eingetragen und  unter Rühren auf 60     bis   <B>701</B>     erwärmt.    Unter  schwachem     Chinongeruch    verwandelt sich       das    mit violetter Farbe     in    Alkohol lösliche  Indophenol in ein sandiges, in Alkohol,     Alka-          lien    und.

       ,Schwefelalkalien        unlösliches    Pro-         Jukt.    Nach     etwa        @30        Minuten        ist    die Um  wandlung vollzogen. Man     filtriert    und     troek-          net.     



       1,3,5    Teile dieses Produktes werden in  eine     Polyeulfidlösung,    die hergestellt wurde  durch Lösen von 6     Teilen    Schwefel in  1,5 Teilen     krist.    Schwefelnatrium,     eingetragen.     Nachdem der     Mischung    9     Teile        Schwefel     und -5 Teile     Kochsalz        zugegeben    wurden,  wird im Vakuum bei -80     bis        8,5          ,

  getrocknet.     Die so     erhaltene        Masse    wird     fein    vermahlen  und 3     Stunden    bei 210     bis   <B>230'</B> gebacken.  Durch Lösendes     Backgutes        in        Wasser    unter  Zusatz von etwas     Schwefelnatrium    und Aus  blasen der so erhaltenen Lösung mit Luft  erhält man den neuen Farbstoff.



  Process for the production of a new sulfur-containing dye. It has been found that a new sulfur-containing dye is obtained if the indophenol, which is obtainable from carbazole and p-nitrosophenol, is first treated with acids and then with sulfurizing agents.



  The new dye is a dark powder that is insoluble in water, dissolves in sulfuric acid with a dull green-blue color and dyes cotton from baths containing sulfur and sodium in black, chlorine-like shades.

      <I> Example: </I> 13.5 parts of the indophenol from carbazole and p-nitrosophenol are introduced into 300 parts by volume of a 2% strength sulfuric acid and heated to 60 to 701 with stirring. With a faint smell of quinone, the violet color of the indophenol, which is soluble in alcohol, turns into a sandy one, in alcohol, alkali and.

       , Alkaline sulfur insoluble product. The conversion is complete after about @ 30 minutes. It is filtered and dried.



       1.3.5 parts of this product are in a polyulfide solution which has been prepared by dissolving 6 parts of sulfur in 1.5 parts of crystalline. Sulfur sodium, registered. After 9 parts of sulfur and -5 parts of sodium chloride have been added to the mixture, it is vacuumed at -80 to 8.5,

  dried. The mass obtained in this way is finely ground and baked for 3 hours at 210 to <B> 230 '</B>. The new dye is obtained by dissolving the baked goods in water with the addition of a little sodium sulphide and blowing off the resulting solution with air.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eins neuen schwefelhaltigen Farbstoffes, dadurch ge kennzeichnet, dass man das Indophenol, das aus Carbazol und p-Nitrosophenol erhältlich ist, zunächst mit Säuren und hierauf mit schwefelnd wirkenden Mitteln behandelt. Der neue Farbstoff stellt ein dunkles Pul ver dar, das in Wasser unlöslich ist, PATENT CLAIM: Process for the production of a new sulfur-containing dye, characterized in that the indophenol, which is obtainable from carbazole and p-nitrosophenol, is first treated with acids and then with sulfurizing agents. The new dye is a dark powder that is insoluble in water, in Schwefelsäure ,sich mit stumpfer grünblauer Farbe löst und Baumwolle aus schwefel- natriumhaltigem Bade in schwarzen, chlor echten Tönen färbt. in sulfuric acid, dissolves with a dull green-blue color and dyes cotton from baths containing sulfur and sodium in black, chlorine-like shades.
CH189873D 1936-03-11 1936-03-11 Process for the production of a new sulfur-containing dye. CH189873A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH189873T 1936-03-11

Publications (1)

Publication Number Publication Date
CH189873A true CH189873A (en) 1937-03-31

Family

ID=4436579

Family Applications (1)

Application Number Title Priority Date Filing Date
CH189873D CH189873A (en) 1936-03-11 1936-03-11 Process for the production of a new sulfur-containing dye.

Country Status (1)

Country Link
CH (1) CH189873A (en)

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