CH118628A - Process for the preparation of a basic dye of the malachite green series. - Google Patents

Process for the preparation of a basic dye of the malachite green series.

Info

Publication number
CH118628A
CH118628A CH118628DA CH118628A CH 118628 A CH118628 A CH 118628A CH 118628D A CH118628D A CH 118628DA CH 118628 A CH118628 A CH 118628A
Authority
CH
Switzerland
Prior art keywords
preparation
basic dye
green series
malachite green
dye
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 CH118628A publication Critical patent/CH118628A/en

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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
    • C09B11/00—Diaryl- or thriarylmethane dyes
    • C09B11/04—Diaryl- or thriarylmethane dyes derived from triarylmethanes, i.e. central C-atom is substituted by amino, cyano, alkyl
    • C09B11/10—Amino derivatives of triarylmethanes
    • C09B11/12—Amino derivatives of triarylmethanes without any OH group bound to an aryl nucleus
    • C09B11/14—Preparation from aromatic aldehydes, aromatic carboxylic acids or derivatives thereof and aromatic amines

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Heat Sensitive Colour Forming Recording (AREA)
  • Coloring (AREA)

Description

  

  Zusatzpatent zum Hauptpatent     Nr.   <B>116995.</B>    Verfahren zur Darstellung eines basischen     Farbstoffes    der     )la.lachitgrünreihe.       Es wurde gefunden,     dass    man zu einem  neuen basischen Farbstoff der     Malachit-          grünreihe    gelangt, wenn man<B>1</B> Molekül       2.3.6-Trichlorberizaldehyd    mit 2 Molekülen       *#lorioaethyl-o-toluidin    kondensiert und die  so entstandene     Leukobase    oxydiert.  



  Trocken -ist der Farbstoff ein graublaues  Pulver, löslich in Wasser mit prachtvoll  blauer Farbe, und färbt Baumwolle, Seide  und Kunstseide in egalen und reinen blauen  Tönen an. Bemerkenswert ist seine über  raschend grosse Affinität zur Kunstseide.  



  <I>Beispiel:</I>  <B>10,5 kg.</B>     2.3.5-Trichlorbenzaldebyd    vom  Schmelzpunkt<B>75</B> bis<B>76'</B> und 14,8<B>kg</B>     Mono-          aethyl-o-tolLiidin    werden mit<B>6</B> Liter Schwefel  säure 47' BA<B>30</B> Stunden bei<B>105</B> bis<B>110 0</B>  gerührt. Nach dem Übersättigen mit     Soda-          lösung    wird die überschüssige Base mit Dampf  abgetrieben, und die in der Kälte harte     Leuko-          base        abfiltriert    und getrocknet.

   Die erhaltene       Leukobase    wird in 200 Liter Wasser mit<B>13,9</B>  Liter Salzsäure<B>221)</B> B6 und<B>3 kg</B> Eisessig ge  löst, und die kalte Lösung durch Zugeben von       31        kg        Bleisuperoxydpaste        mit        49,4%Pb02       unter Rühren oxydiert. Nach einer halben  Stunde wird das Blei mit<B>7,8 kg</B> Natrium  sulfat ausgefällt.  



  Nach Erwärmen auf     70')    und Zugabe von  so viel heissem Wasser,     dass    aller Farbstoff  in Lösung geht, wird abgesaugt, und aus dem  Filtrat der Farbstoff mit Kochsalz     ausge-          salzen,    wobei er in grünschillernden Flittern  sich ausscheidet. Er wird filtriert und getrocknet.



  Additional patent to main patent no. <B> 116995. </B> Process for the preparation of a basic dye of the) la.lachite green series. It has been found that a new basic dye of the malachite green series is obtained if <B> 1 </B> molecule 2,3,6-trichlorberizaldehyde is condensed with 2 molecules * # lorioaethyl-o-toluidine and the leuco base thus formed is oxidized .



  When dry, the dye is a gray-blue powder, soluble in water with a splendid blue color, and stains cotton, silk and rayon in even and pure blue tones. Its surprisingly high affinity for artificial silk is remarkable.



  <I> Example: </I> <B> 10.5 kg. </B> 2.3.5-Trichlorobenzaldehyde with a melting point of <B> 75 </B> to <B> 76 '</B> and 14.8 <B> kg </B> Mono-ethyl-o-tolLiidine are mixed with <B> 6 </B> liters of sulfuric acid for 47 'BA <B> 30 </B> hours at <B> 105 </B> to <B> 110 0 </B> stirred. After supersaturation with soda solution, the excess base is driven off with steam, and the leuco base, which is hard in the cold, is filtered off and dried.

   The leuco base obtained is dissolved in 200 liters of water with <B> 13.9 </B> liters of hydrochloric acid <B> 221) </B> B6 and <B> 3 kg </B> glacial acetic acid, and the cold solution through Adding 31 kg of lead peroxide paste with 49.4% Pb02 oxidized with stirring. After half an hour, the lead is precipitated with <B> 7.8 kg </B> sodium sulfate.



  After heating to 70 ') and adding enough hot water that all the dye dissolves, it is filtered off with suction and the dye is salted out of the filtrate with common salt, where it is precipitated in shimmering green flakes. It is filtered and dried.

Claims (1)

<B>PATENTANSPRUCH:</B> Verfahren zur Darstellung eines neuen basischen Farbstoffes der iMalachitgrünreihe, dadurch gekennzeichnet, dass man<B>1</B> Mole <B>kül</B> 2.3.5-Trichlorbenzäldehyd mit 2 Mole külen ]#lonoaethyl-o-toluidin kondensiert und die so entstandene Leukobase oxydiert. Trocken ist der Farbstoff ein graublaues Pulver, löslich in Wasser mit prachtvoll blauer Farbe, und färbt Baumwolle, Seide und Kunstseide in egalen und reinen blauen Tönen an. Bemerkenswert ist seine über raschend 2rosse Affinität zur Kunstseide. <B> PATENT CLAIM: </B> Process for the preparation of a new basic dye of the iMalachite green series, characterized in that <B> 1 </B> moles <B> kül </B> 2.3.5-trichlorobenzaldehyde are killed with 2 moles ] # lonoaethyl-o-toluidine condenses and the leuco base thus formed is oxidized. When dry, the dye is a gray-blue powder, soluble in water with a magnificent blue color, and stains cotton, silk and rayon in even and pure blue tones. Its surprising affinity for artificial silk is remarkable.
CH118628D 1925-09-03 1925-09-03 Process for the preparation of a basic dye of the malachite green series. CH118628A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH116995T 1925-09-03
CH118628T 1925-09-03

Publications (1)

Publication Number Publication Date
CH118628A true CH118628A (en) 1927-01-17

Family

ID=25708772

Family Applications (1)

Application Number Title Priority Date Filing Date
CH118628D CH118628A (en) 1925-09-03 1925-09-03 Process for the preparation of a basic dye of the malachite green series.

Country Status (1)

Country Link
CH (1) CH118628A (en)

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