CH152512A - Process for the preparation of a dye of the anthraquinone series. - Google Patents

Process for the preparation of a dye of the anthraquinone series.

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Publication number
CH152512A
CH152512A CH152512DA CH152512A CH 152512 A CH152512 A CH 152512A CH 152512D A CH152512D A CH 152512DA CH 152512 A CH152512 A CH 152512A
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CH
Switzerland
Prior art keywords
dye
blue
preparation
acid
gray
Prior art date
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German (de)
Inventor
Sandoz Chemische Fabri Vormals
Original Assignee
Chem Fab Vormals Sandoz
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 Fab Vormals Sandoz filed Critical Chem Fab Vormals Sandoz
Publication of CH152512A publication Critical patent/CH152512A/en

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  Verfahren zur Darstellung eines Farbstoffes der     Anthrachinonreihe.       Das vorliegende Verfahren betrifft die  Darstellung eines grauen Farbstoffes der     An-          ihrachinonreihe,    darin bestehend,     dass    man ein  Salz der     1-Amiiio-2,4-dibi-omatithrachinon-8-          suliosäure    mit     Diäthyl-p-phenyleiidiamin    in  Gegenwart von     Kupferverbi        ndungen    und säure  bindenden Mitteln kondensiert und die erhal  tene     Farbstoffbase    so lange mit     Sulfit    behan  delt,

   bis das     P-ständige    Bromatom vollständig  durch eine     Sulfogruppe    ersetzt wird.  



  <I>Beispiel:</I>  <B>10</B> Teile     1-amitio-2,4-dibromarithrachition-          8-stilfosaures    Kalium, werden mit<B>100</B> Teilen  Wasser,<B>2.,5</B> Teilen wasserfreiem     Natrium-          carbonat,   <B>1,5</B> Teil     krist.    Kupfersulfat und<B>10</B>  Teilen     Diäthyl-p-phenyleiidiamin    in einer in  differenten Atmosphäre so lange auf<B>60-70 0 C</B>  erhitzt, bis das Bromatom in     4-Stellung    voll  ständig durch den     Diäthyl-p-phenyleiidiamin-          rest    ersetzt ist.

   Die entstandene     Farbstoff-          sulfosäure    wird durch Ansäuern. gefällt und  so lange mit     Kaliumsulfit    erhitzt, bis das       Bromatoni    in 2<B>-</B> Stellung durch eine     Sulfo-          gruppe    vollständig ersetzt ist. Der entstan-         dene    Farbstoff wird durch     Aussalzen    aus der  Lösung isoliert.  



  Er besitzt die Formel  
EMI0001.0031     
    und stellt in trockenem Zustand ein     bläulich-          schwarzes    Pulver dar, welches in Wasser mit  blauer Farbe, in konzentrierter Schwefelsäure  farblos, aber auf Zusatz von Borsäure mit  trüber blauer Farbe löslich ist. In kaltem  Äthylalkohol ist er mit     grünlichblauer    Farbe  löslich. Er färbt     ungebeizte    Wolle aus saurem  Bade in blauen Tönen an, welche durch     Chro-          mieren    in ein     violettstichiges    Grau übergehen.



  Process for the preparation of a dye of the anthraquinone series. The present process relates to the preparation of a gray dye of the andesaquinone series, consisting in that a salt of 1-amino-2,4-dibi-omatithraquinone-8-sulioic acid is mixed with diethyl-p-phenyldiiamine in the presence of copper compounds and acid binding agents condensed and the dye base obtained treated with sulfite for so long

   until the P bromine atom is completely replaced by a sulfo group.



  <I> Example: </I> <B> 10 </B> parts of 1-amitio-2,4-dibromarithrachition- 8-stilfosaures potassium, are mixed with <B> 100 </B> parts of water, <B> 2 ., 5 </B> parts of anhydrous sodium carbonate, <B> 1.5 </B> parts of crystalline. Copper sulfate and <B> 10 </B> parts of diethyl-p-phenyldiiamine are heated to <B> 60-70 ° C. in a different atmosphere until the 4-position bromine is completely absorbed by the diethyl -p-phenyleiidiamin- is replaced.

   The resulting dye sulfonic acid is acidified. precipitated and heated with potassium sulfite until the bromatoni in the 2 <B> - </B> position has been completely replaced by a sulfo group. The resulting dye is isolated from the solution by salting out.



  He owns the formula
EMI0001.0031
    and when dry it is a bluish-black powder which is blue in water and colorless in concentrated sulfuric acid, but soluble in a cloudy blue color when boric acid is added. In cold ethyl alcohol it is soluble with a greenish blue color. He dyes unstained wool from an acid bath in blue tones, which change into a purple-tinged gray through chroming.

Claims (1)

PATENTANSPRUCH: Verfahren zur Darstellung eines grauen Farbstoffes der Anthrachinonreihe, dadurch ge kennzeichnet, dass man ein Salz der 1-Amitio- 2,4-dibi-omatithrachinon-8-salfosättre mit Diä- tbyl <B>- p -</B> phenylendiainin in Gegenwart von Kupferverbindungen und säurebindenden M, it- teln kondensiert und die erhaltene Farbstoff- base so lange mit Sulfit behandelt, PATENT CLAIM: Process for the preparation of a gray dye of the anthraquinone series, characterized in that a salt of the 1-amino-2,4-dibi-omatithraquinone-8-sulfosaturation with dietbyl <B> - p - </B> phenylenediainine condenses in the presence of copper compounds and acid-binding agents and the dye base obtained is treated with sulfite for so long, bis das fl-ständige Bromatorn vollständig durch eine Sulfogruppe ei-setzt wird. Der netie Farbstoff besitzt die Formel EMI0002.0014 und. stellt in trockenem Zustande ein bläti- lichschwarzes Pulver dar, welches in Wasser mit blauer Farbe, in konzentrierter Schwefel säure farblos, aber auf Zusatz von Borsäure mit trübblauer Farbe lbslich ist. until the bromine in its position is completely replaced by a sulfo group. The netie dye has the formula EMI0002.0014 and. When dry it is a leafy-black powder which is blue in water in water and colorless in concentrated sulfuric acid, but pale blue in color when boric acid is added. In kaltem Äthylalkohol ist ei, mit grünlichblauer Farbe löslieli. <B>Er</B> färbt ungebeizte Wolle aus saurem Bade in blauen Tönen an, welche durch Chrowieren in ein violettstichiges Grau über gehen. In cold ethyl alcohol is egg, with a greenish-blue color soluble. <B> He </B> dyes unstained wool from an acidic bath in blue tones, which turn into a purple-tinged gray through chroping.
CH152512D 1929-10-04 1930-09-27 Process for the preparation of a dye of the anthraquinone series. CH152512A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE152512X 1929-10-04
CH149419T 1930-09-27

Publications (1)

Publication Number Publication Date
CH152512A true CH152512A (en) 1932-01-31

Family

ID=25715435

Family Applications (1)

Application Number Title Priority Date Filing Date
CH152512D CH152512A (en) 1929-10-04 1930-09-27 Process for the preparation of a dye of the anthraquinone series.

Country Status (1)

Country Link
CH (1) CH152512A (en)

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