CH156324A - Process for the production of a chromium-containing dye. - Google Patents

Process for the production of a chromium-containing dye.

Info

Publication number
CH156324A
CH156324A CH156324DA CH156324A CH 156324 A CH156324 A CH 156324A CH 156324D A CH156324D A CH 156324DA CH 156324 A CH156324 A CH 156324A
Authority
CH
Switzerland
Prior art keywords
chromium
dye
production
containing dye
green
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 CH156324A publication Critical patent/CH156324A/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)
  • Optical Filters (AREA)

Description

  

  Verfahren zur Herstellung eines chromhaltigen     Farbstoffes.       Es wurde gefunden, dass ein neuer     chrom-          haltiger        Farbstoff,    der auf jede     chromierbare     Gruppe des     Farbstoffmoleküls    1 Atom Chrom  enthält, erhalten wird, wenn man den Farb  stoff aus dianotierter     6-Nitro-2-amino-l-phenol=          4-sulfosäure    und     2-Aminonaphthalin    mit  Chromsulfat behandelt.  



  Der gebildete Farbstoff stellt ein dunkel  grünes Pulver dar, das sich in verdünnter  Soda mit blaustichig grüner Farbe löst und  Wolle aus schwefelsaurem Bade in grünen  Tönen färbt.  



       Beisl)iel     38,8 Teile des Farbstoffes aus dianotierter       6-Nitro-2-amirio-l-phenol-4-sulfosäure    und       2-Amirioriaphthalin    werden in 1500 Teilen  Wasser gelöst und mit einer basischen     Chrom-          sulfatlösirng,    die 9,1 Teile     Or20s    und<B>11,7</B>  Teile     H2SO4    enthält, während 20 Stunden    am     Rückfluss    zum Sieden erhitzt. Die nach  dieser Zeit entstandene Chromverbindung wird  durch Zugabe von Kochsalz abgeschieden,  filtriert und getrocknet.



  Process for the production of a chromium-containing dye. It has been found that a new chromium-containing dye which contains 1 atom of chromium for each chromable group of the dye molecule is obtained if the dye is made from dianotized 6-nitro-2-amino-1-phenol = 4-sulfonic acid and 2-aminonaphthalene treated with chromium sulfate.



  The dye formed is a dark green powder that dissolves in dilute soda with a bluish green color and dyes wool from sulfuric acid bath in green tones.



       For example, 38.8 parts of the dyestuff from dianotized 6-nitro-2-aminio-1-phenol-4-sulfonic acid and 2-amirioriaphthalene are dissolved in 1500 parts of water and, with a basic chromium sulfate solution, the 9.1 parts of Or20s and <B> 11.7 </B> parts H2SO4, heated to boiling under reflux for 20 hours. The chromium compound formed after this time is separated out by adding sodium chloride, filtered and dried.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines chrom- haltigen Farbstoffes, der auf jede ohroinierbai-e Gruppe des Farbstoffmoleküls 1 Atom Chrom enthält, dadurch gekennzeichnet, dass man der) Farbstoff aus dianotierter 6 - Niti-o - 2 - amino- 1-pheriol-4-sulfosäure und 2-Aniirionaphthalin mit Chromsulfat behandelt. Der gebildete Farbstoff stellt ein dunkel grünes Pulver dar, das sich in verdünnter Soda mit blaustichig grüner Farbe löst und Wolle aus schwefelsaurem Bade in grünen Tönen färbt. PATENT CLAIM: A process for the production of a chromium-containing dye which contains 1 atom of chromium for each ohroinierbai-e group of the dye molecule, characterized in that the) dye is made from dianotated 6-nitro-2-amino-1-pheriol-4 -sulfonic acid and 2-anionic naphthalene treated with chromium sulfate. The dye formed is a dark green powder that dissolves in dilute soda with a bluish green color and dyes wool from sulfuric acid bath in green tones.
CH156324D 1929-12-18 1929-12-18 Process for the production of a chromium-containing dye. CH156324A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH152880T 1929-12-18
CH156324T 1929-12-18

Publications (1)

Publication Number Publication Date
CH156324A true CH156324A (en) 1932-07-31

Family

ID=25716058

Family Applications (1)

Application Number Title Priority Date Filing Date
CH156324D CH156324A (en) 1929-12-18 1929-12-18 Process for the production of a chromium-containing dye.

Country Status (1)

Country Link
CH (1) CH156324A (en)

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