CH201852A - Process for the preparation of a disazo dye. - Google Patents

Process for the preparation of a disazo dye.

Info

Publication number
CH201852A
CH201852A CH201852DA CH201852A CH 201852 A CH201852 A CH 201852A CH 201852D A CH201852D A CH 201852DA CH 201852 A CH201852 A CH 201852A
Authority
CH
Switzerland
Prior art keywords
disazo dye
preparation
dye
parts
disazo
Prior art date
Application number
Other languages
German (de)
Inventor
Aktiengesellsc Farbenindustrie
Original Assignee
Ig Farbenindustrie Ag
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 Ig Farbenindustrie Ag filed Critical Ig Farbenindustrie Ag
Publication of CH201852A publication Critical patent/CH201852A/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
    • C09B35/00—Disazo and polyazo dyes of the type A<-D->B prepared by diazotising and coupling
    • C09B35/02—Disazo dyes
    • C09B35/039—Disazo dyes characterised by the tetrazo component
    • C09B35/227—Disazo dyes characterised by the tetrazo component the tetrazo component being a derivative of a diaryl sulfide or a diaryl polysulfide

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inks, Pencil-Leads, Or Crayons (AREA)

Description

  

  Zusatzpatent zum Hauptpatent Nr. 198710.    Verfahren zur Herstellung eines     Disazofarbstofes.       Nach dem im Hauptpatent beschriebenen  Verfahren erhält man einen     Disazofarbstoff,     der sich in organischen Lösungsmitteln mit       bräunlich.    gelber Farbe löst, wenn man     p-          Aminoazobenzol        diazotiert    und die     Diazover-          bindung    mit     p-Isohexylphenol    kuppelt.  



  Wie nun weiter gefunden wurde, erhält  man     einen        Disazofarbstoff    von ähnlichen  Eigenschaften, wenn man 4 . 4' -     Diamino-          diphenylsulfid        tetrazotiert    und die     Tetrazo-          verbindung    mit     p-Isohexylphenol    kuppelt.  



  <I>Beispiel:</I>  Man     tetrazotiert   <B>21,6</B> Teile 4.     4'-Diamino-          diphenylsulfid    unter Zugabe von 100 Teilen  Salzsäure, 12       B6,    mit<B>13,8</B> Teilen Natrium  nitrit und lässt die filtrierte Lösung bei 0    zu einer Lösung von 35,6 Teilen p-Isohexyl-    Phenol, 16 Teilen     Natriumhydroxyd    und  6     Teilen    eines     Emulgiermittels    einlaufen. Der  Farbstoff wird in üblicher Weise aufgearbei  tet. Er färbt organische     Lösungsmittel    in  gelben Tönen an.



  Additional patent to main patent no. 198710. Process for the production of a disazo dye. The process described in the main patent gives a disazo dye which turns brownish in organic solvents. yellow color dissolves when p-aminoazobenzene is diazotized and the diazo compound is coupled with p-isohexylphenol.



  As has now been found further, a disazo dye with similar properties is obtained if 4. 4 '- diaminodiphenyl sulfide is tetrazotized and the tetrazo compound is coupled with p-isohexylphenol.



  <I> Example: </I> <B> 21.6 </B> parts of 4. 4′-diamino diphenyl sulfide are tetrazotized with the addition of 100 parts of hydrochloric acid, 12 B6, with <B> 13.8 </ B > Parts of sodium nitrite and lets the filtered solution run in at 0 to a solution of 35.6 parts of p-isohexyl phenol, 16 parts of sodium hydroxide and 6 parts of an emulsifying agent. The dye is worked up in the usual way. It stains organic solvents in yellow tones.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines Disazo- farbstoffes, dadurch gekennzeichnet, dass man 4. 4' - Diamino - diphenylsulfid tetrazo- tiert und die Tetrazoverbindung mit p-Iso- hexylphenol kuppelt. Der Farbstoff färbt organische Lösungs- mittel in gelben Tönen an. PATENT CLAIM: Process for the production of a disazo dye, characterized in that 4. 4 '- diamino - diphenyl sulfide is tetrazotized and the tetrazo compound is coupled with p-isohexylphenol. The dye stains organic solvents in yellow tones.
CH201852D 1936-03-31 1937-01-22 Process for the preparation of a disazo dye. CH201852A (en)

Applications Claiming Priority (8)

Application Number Priority Date Filing Date Title
DE201844X 1936-03-31
DE201847X 1936-03-31
DE201848X 1936-03-31
DE201845X 1936-03-31
DE201849X 1936-03-31
DE201846X 1936-03-31
DE201852X 1936-03-31
CH198710T 1937-01-22

Publications (1)

Publication Number Publication Date
CH201852A true CH201852A (en) 1938-12-15

Family

ID=27570412

Family Applications (1)

Application Number Title Priority Date Filing Date
CH201852D CH201852A (en) 1936-03-31 1937-01-22 Process for the preparation of a disazo dye.

Country Status (1)

Country Link
CH (1) CH201852A (en)

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