CH119896A - Process for the production of a new dye. - Google Patents

Process for the production of a new dye.

Info

Publication number
CH119896A
CH119896A CH119896DA CH119896A CH 119896 A CH119896 A CH 119896A CH 119896D A CH119896D A CH 119896DA CH 119896 A CH119896 A CH 119896A
Authority
CH
Switzerland
Prior art keywords
dye
new dye
parts
production
orange
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 CH119896A publication Critical patent/CH119896A/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)
  • Coloring (AREA)

Description

  

      Verfahren    zur Herstellung eines neuen     Farbstoffes.       Es wurde gefunden, dass man einen neuen       Farbstoff    erhält, wenn man das     2-Amino-          1-oxybenzol-4-sulfamid        diazotiert,    hierauf mit       1-(3'-Sulfamido)    -     phenyl-5-pyrazolon-3-kar-          bonsäure    kuppelt und den so erhaltenen       Farbstoff    mit     Alkalichromiten    behandelt.

    Der neue Farbstoff bildet ein braunes Pul  ver, löst sich in Wasser und in 10     %iger     Natronlauge mit     orangen,    in konzentrierter  Schwefelsäure mit gelber Farbe und färbt  Wolle aus saurem Bade in orangen Tönen  mit vorzüglichen. Eigenschaften.

      <I>Beispiel:</I>    18,8 Teile     2-Amino-l-oxybenzol-4-sulf-          amid    werden in üblicher Weise mit 6,9 Tei  len     Natriumnitrit        diazotiert.    Die     Diazo-          lösung    lässt man in eine eiskalte Lösung von  28,3 Teilen 1-     (3'-Sulfamido)-phenyl-5-py-          razolon-3-karbonsäure    und 30 Teilen Soda,  in 250 Teilen Wasser unter Rühren einflie  ssen. Die Reaktionsmasse wird nach vollen  deter Kupplung auf 50   angewärmt und der  Farbstoff mit Kochsalz     ausgesalzen    und in       üblieher    Weise isoliert.

      48,2 Teile des so erhaltenen Farbstoffes  werden in eine kochende Lösung, enthaltend  8,5 Teile     Cr203,    150 Teile Wasser, 28 Teile       Atzkali    und 10 Teile Glyzerin, eingetragen  und längere Zeit gekocht. Nach Verdünnen  mit 200 Teilen Wasser wird filtriert und  der neue Farbstoff aus dem Filtrat durch  Neutralisieren und     Aussalzen    isoliert.



      Process for the production of a new dye. It has been found that a new dye is obtained if the 2-amino-1-oxybenzene-4-sulfamide is diazotized and then coupled with 1- (3'-sulfamido) phenyl-5-pyrazolone-3-carboxylic acid and treating the dye thus obtained with alkali chromites.

    The new dye forms a brown powder, dissolves in water and in 10% sodium hydroxide solution with orange, in concentrated sulfuric acid with yellow color and dyes wool from acid baths in orange tones with excellent shades. Characteristics.

      <I> Example: </I> 18.8 parts of 2-amino-1-oxybenzene-4-sulfamide are diazotized in the customary manner with 6.9 parts of sodium nitrite. The diazo solution is allowed to flow into an ice-cold solution of 28.3 parts of 1- (3'-sulfamido) -phenyl-5-pyrazolone-3-carboxylic acid and 30 parts of soda in 250 parts of water with stirring. After coupling is complete, the reaction mass is warmed to 50 and the dye is salted out with sodium chloride and isolated in the usual way.

      48.2 parts of the dye thus obtained are introduced into a boiling solution containing 8.5 parts of Cr 2 O 3, 150 parts of water, 28 parts of caustic potash and 10 parts of glycerol, and the mixture is boiled for a long time. After dilution with 200 parts of water, the mixture is filtered and the new dye is isolated from the filtrate by neutralization and salting out.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines neuen Farbstoffes, dadurch gekennzeichnet, dass man das 2-Amino-l-oxybenzol-4-sulfamid di- azotiert, hierauf mit 1-(3'-Sulfamido)-phe- nyl-5-pyrazolon-3-karbonsäure kuppelt und den so erhaltenen Farbstoff mit Alkalichro- miten behandelt. Der neue Farbstoff bildet ein braunes Pulver, löst sich in Wasser und in 10 %iger Natronlauge mit oranger, in konzentrierter Schwefelsäure mit gelber Farbe und färbt Wolle aus saurem Bade in orangen Tönen mit vorzüglichen Eigen schaften. Claim: Process for the preparation of a new dye, characterized in that the 2-amino-1-oxybenzene-4-sulfamide is azotized, then with 1- (3'-sulfamido) -phenyl-5-pyrazolone-3 -carboxylic acid and the dye thus obtained treated with alkali chromates. The new dye forms a brown powder, dissolves in water and in 10% sodium hydroxide solution with orange, in concentrated sulfuric acid with yellow color and dyes wool from acid baths in orange tones with excellent properties.
CH119896D 1925-07-03 1925-07-03 Process for the production of a new dye. CH119896A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH117996T 1925-07-03
CH119896T 1925-07-03

Publications (1)

Publication Number Publication Date
CH119896A true CH119896A (en) 1927-04-16

Family

ID=25708930

Family Applications (1)

Application Number Title Priority Date Filing Date
CH119896D CH119896A (en) 1925-07-03 1925-07-03 Process for the production of a new dye.

Country Status (1)

Country Link
CH (1) CH119896A (en)

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