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DE226241C - - Google Patents

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Publication number
DE226241C
DE226241C DENDAT226241D DE226241DA DE226241C DE 226241 C DE226241 C DE 226241C DE NDAT226241 D DENDAT226241 D DE NDAT226241D DE 226241D A DE226241D A DE 226241DA DE 226241 C DE226241 C DE 226241C
Authority
DE
Germany
Prior art keywords
dye
och
parts
dichlorodianisidine
purple
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
Application number
DENDAT226241D
Other languages
German (de)
Publication of DE226241C publication Critical patent/DE226241C/de
Active legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09BORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
    • C09B35/00Disazo and polyazo dyes of the type A<-D->B prepared by diazotising and coupling
    • C09B35/02Disazo dyes
    • C09B35/039Disazo dyes characterised by the tetrazo component
    • C09B35/08Disazo dyes characterised by the tetrazo component the tetrazo component being a derivative of biphenyl
    • C09B35/10Disazo dyes characterised by the tetrazo component the tetrazo component being a derivative of biphenyl from two coupling components of the same type
    • C09B35/14Disazo dyes characterised by the tetrazo component the tetrazo component being a derivative of biphenyl from two coupling components of the same type from hydroxy compounds

Landscapes

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

Description

KAISERLICHESIMPERIAL

PATENTAMT.PATENT OFFICE.

PATENTSCHRIFTPATENT LETTERING

- M 226241 KLASSE 22 a. GRUPPE- M 226241 CLASS 22 a. GROUP

Verfahren zur Darstellung eines violetten Disazofarbstoffes.Process for the preparation of a purple disazo dye.

Patentiert im Deutschen Reiche vom 11. August 1909 ab.Patented in the German Empire on August 11, 1909.

Es wurde gefunden, daß die Tetrazoverbindung des Dichlordianisidins der FormelIt has been found that the tetrazo compound of dichlorodianisidine of the formula

OCH*OCH *

N H2-NH 2 -

OCH3 OCH 3

-NH2,-NH 2 ,

Cl ClCl Cl

ίο das aus Chlornitrophenolätherίο the one from chloronitrophenol ether

(O C H3: N O2: Cl = 1:2:4) (OCH 3 : NO 2 : Cl = 1: 2: 4)

leicht dargestellt werden kann, bei Kombination mit 2 Molekülen 2-Naphtol-3: 6-disulfosäure einen rötlich violetten Farbstoff liefert, der sowohl zum Färben von Wolle als auch zur Darstellung von Pigmentfarben dienen kann. Diese letzteren sind vorzüglich kalk-, wasser- und ölecht und wegen ihrer guten Lichtechtheit und reinen rötlich violetten Nuance von besonderem Werte.can be easily represented when combined with 2 molecules of 2-naphthol-3: 6-disulfonic acid provides a reddish purple dye that is used both for dyeing wool and can serve to represent pigment colors. These latter are especially calcareous, water and oil and because of their good lightfastness and pure reddish purple Nuance of particular value.

Die Darstellung' des Farbstoffes kann wie folgt ausgeführt werden.The representation of the dye can be carried out as follows.

15,6 Teile Dichlordianisidin werden mit 6,9 Teilen Natriumnitrit und der nötigen Menge Salzsäure diazotiert und die, wenn nötig, filtrierte Lösung in eine bis zum Schluß der Kombination sodaalkalisch gehaltene und mit Eis gekühlte Lösung von 36 Teilen 2 - Naphtol -3:6- disulfosäure (Dinatriumsalz) einfließen gelassen. Nach Vollendung der Farbstoffbildung wird auf 700 angewärmt und der Farbstoff mit Salz gefallt, abfiltriert und getrocknet. Seine Überführung in Pigmentfarben kann nach den üblichen Methoden erfolgen. 15.6 parts of dichlorodianisidine are diazotized with 6.9 parts of sodium nitrite and the necessary amount of hydrochloric acid and, if necessary, the filtered solution is poured into a solution of 36 parts of 2-naphthol -3: 6 that is kept alkaline with soda until the end of the combination and is cooled with ice - Disulfonic acid (disodium salt) allowed to flow in. After completion of the dye formation is heated to 70 0 and the dye precipitated with salt, filtered and dried. It can be converted into pigment colors by the usual methods.

Claims (1)

Patent-Anspruch:Patent claim: Verfahren zur Darstellung eines violetten Disazofarbstoffes, darin bestehend, daß man die Tetrazoverbindung aus Dichlordianisidin der FormelA method of preparing a purple disazo dye, consisting in that one the tetrazo compound from dichlorodianisidine of the formula N H0 NH 0
DENDAT226241D Active DE226241C (en)

Publications (1)

Publication Number Publication Date
DE226241C true DE226241C (en)

Family

ID=486805

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT226241D Active DE226241C (en)

Country Status (1)

Country Link
DE (1) DE226241C (en)

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