CH133100A - Process for the production of a new chromium-containing azo dye. - Google Patents

Process for the production of a new chromium-containing azo dye.

Info

Publication number
CH133100A
CH133100A CH133100DA CH133100A CH 133100 A CH133100 A CH 133100A CH 133100D A CH133100D A CH 133100DA CH 133100 A CH133100 A CH 133100A
Authority
CH
Switzerland
Prior art keywords
dye
production
chromium
containing azo
azo 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 CH133100A publication Critical patent/CH133100A/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
    • C09B45/00—Complex metal compounds of azo dyes
    • C09B45/02—Preparation from dyes containing in o-position a hydroxy group and in o'-position hydroxy, alkoxy, carboxyl, amino or keto groups
    • C09B45/14—Monoazo compounds
    • C09B45/16—Monoazo compounds containing chromium

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Coloring (AREA)

Description

  

  <B>Zusatzpatent</B> zum Hauptpatent Nr. 130698.    Verfahren zur Herstellung eines neuen chromhaltigen     Azofarbstofffes.       Es wurde gefunden, dass man einen neuen  chromhaltigen     Azofarbstoff    erhält, wenn man  das     Natriumsalz    des     Farbstoffes    aus     diazo-          tiertem        4-Chlor-2-aminophenol    und     1-m-Sulf-          amidophenyl=3-methyl-5-pyrazolon    in Gegen  wart von alkalischen Reduktionsmitteln unter  Druck mit     Chromhy        droxydhydraten    behandelt.

    Der neue     .Farbstoff    stellt ein braunrotes Pul  ver dar, welches sich in Wasser und ver  dünnter Natronlauge mit     rotoranger    und in  konzentrierter Schwefelsäure mit gelber Farbe  löst. Wolle wird aus schwefelsaurem Bade  echt rotorange gefärbt.  



       BeisViel     36 Teile kristallisiertes Schwefelnatrium,       46        Teile        Chromhydroxydpaste        mit        9,1%          Crs0s,

      60 Teile des     Natriumsalzes    des Farb  stoffes aus     diazotiertem        4-Chlor-2-aminophenol     und     1-m-Sulfamidophenyl-3-methyl-5-pyra-          zolon        in        Form        einer        Paste        von        25%        und        30     Teile Wasser werden innig vermischt und  im geschlossenen Apparat 6 Stunden auf    115-1200 erhitzt.

   Nach dem Erkalten wird  in etwa 1000 Teilen Wasser heiss gelöst,  von geringen Mengen Chromschlamm filtriert  und     ausgesalzen.  



  <B> Additional patent </B> to main patent no. 130698. Process for the production of a new chromium-containing azo dye. It has been found that a new chromium-containing azo dye is obtained if the sodium salt of the dye of diazotized 4-chloro-2-aminophenol and 1-m-sulfamidophenyl = 3-methyl-5-pyrazolone is used in the presence of alkaline substances Reducing agents treated with chromium hydroxide hydrates under pressure.

    The new dye is a brownish-red powder which dissolves in water and dilute sodium hydroxide solution with red-orange color and in concentrated sulfuric acid with a yellow color. Wool is dyed really red-orange from sulfuric acid bath.



       BeisViel 36 parts of crystallized sodium sulphide, 46 parts of chromium hydroxide paste with 9.1% Crs0s,

      60 parts of the sodium salt of the dye from diazotized 4-chloro-2-aminophenol and 1-m-sulfamidophenyl-3-methyl-5-pyrazolone in the form of a paste of 25% and 30 parts of water are mixed intimately and in the closed apparatus Heated to 115-1200 for 6 hours.

   After cooling, it is dissolved in about 1000 parts of hot water, small amounts of chrome sludge are filtered off and salted out.

Claims (1)

PATENTANSPRUCH Verfahren zur Herstellung eines chrom- haltigen Azofarbstoffes, dadurch gekennzeich net, dass man das Natriumsalz des Farb stoffes aus diazotiertem 4-Chlor-2-aminophenol und 1-m-Sulfamidophenyl-3-methyl-5-pyrazo- lon in Gegenwart von alkalischen Reduktions mitteln unter Druck mit Chromhydroxyd- hvdraten behandelt. PATENT CLAIM Process for the production of a chromium-containing azo dye, characterized in that the sodium salt of the dye is made from diazotized 4-chloro-2-aminophenol and 1-m-sulfamidophenyl-3-methyl-5-pyrazolone in the presence of alkaline Reducing agents treated with chromium hydroxide hydrate under pressure. Der neue Farbstoff stellt ein braunrotes Pulver dar, welches sich in Wasser und verdünnter Natronlauge mit rot- oranger und in konzentrierter Schwefelsäure mit gelber Farbe löst. Wolle wird aus schwe felsaurem Bade echt rotorange gefärbt. The new dye is a brown-red powder, which dissolves in water and dilute sodium hydroxide solution with red-orange color and in concentrated sulfuric acid with a yellow color. Wool is dyed red-orange from sulfuric acid bath.
CH133100D 1927-08-13 1927-08-13 Process for the production of a new chromium-containing azo dye. CH133100A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH130698T 1927-08-13
CH133100T 1927-08-13

Publications (1)

Publication Number Publication Date
CH133100A true CH133100A (en) 1929-05-15

Family

ID=25711487

Family Applications (1)

Application Number Title Priority Date Filing Date
CH133100D CH133100A (en) 1927-08-13 1927-08-13 Process for the production of a new chromium-containing azo dye.

Country Status (1)

Country Link
CH (1) CH133100A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2673201A (en) * 1954-03-23 Cobaltiferous azo-dyestuffs

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2673201A (en) * 1954-03-23 Cobaltiferous azo-dyestuffs

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