DE174905C - - Google Patents

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Publication number
DE174905C
DE174905C DENDAT174905D DE174905DA DE174905C DE 174905 C DE174905 C DE 174905C DE NDAT174905 D DENDAT174905 D DE NDAT174905D DE 174905D A DE174905D A DE 174905DA DE 174905 C DE174905 C DE 174905C
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DE
Germany
Prior art keywords
acid
chloronaphthol
disulfonic acid
aminophenol
blue
Prior art date
Legal status (The legal status 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 status listed.)
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Application number
DENDAT174905D
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German (de)
Publication of DE174905C publication Critical patent/DE174905C/de
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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
    • 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

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Coloring (AREA)

Description

6060

Verfahren zur Darstellung von Orthooxymonoazofarbstoffen, darin bestehend, daß man die diazotierten halogensubstituierten ο - Aminophenole in .Gegenwart von Kalkhydrat kombiniert mit Perichlornaphtolsulfosäuren. Process for the preparation of orthooxymonoazo dyes, consisting in the fact that the diazotized halogen-substituted ο-aminophenols in .Gegenwart of hydrated lime combined with perichloronaphthol sulfonic acids.

Claims (1)

Patent-Anspruch:Patent claim: Beispiel II. 17,8 kg o-p-Dichlor-oaminophenol werden mit 25 kg Salzsäure von etwa 250Be. und 6,9 kg Nitrit diazotiert und eingetragen in eine Lösung von 39 kg des neutralen Natronsalzes der 1 · 8-Chlornapthol-4 · 6-disulfosäure, die mit 26 kg Kalkhydrat in feiner Verteilung verrührt ist. Nach achtstündigem Rühren bei gewöhnlicher Temperatur filtriert man und fällt den Farbstoff durch Mineralsäure und Kochsalz. Example II. 17.8 kg of op-dichloroaminophenol are mixed with 25 kg of hydrochloric acid of about 25 0 Be. and 6.9 kg of nitrite diazotized and added to a solution of 39 kg of the neutral sodium salt of 1x8-chloronaphthol-4x6-disulfonic acid, which is finely divided with 26 kg of hydrated lime. After stirring for eight hours at ordinary temperature, the mixture is filtered and the dye is precipitated through mineral acid and sodium chloride. Der Farbstoff löst sich in Wasser mit roter Farbe und färbt mit Chromsalzen gebeizte Wolle echt blau.The dye dissolves in water with a red color and stains stained with chromium salts Wool really blue. In entsprechender Weise gewinnt man z. B. die Farbstoffe aus ρ-Chlor-ο-aminophenol mit ι · 8-Chlornaphtol-4 · 6-disulfosäure und o-p-Dichlor-o-aminophenol mit 1 · 8-Chlornaphtol-3 · 6-disulfosäure, die ebenfalls als dunkle, in Wasser mit roter Farbe lösliche Pulver erhalten werden. Sie geben auf chromierter Wolle oder durch Nachchromieren der im sauren Bade entstehenden Färbung echte blaue Nuancen.In a corresponding manner one wins z. B. the dyes from ρ-chloro-ο-aminophenol with ι · 8-chloronaphthol-4 · 6-disulfonic acid and o-p-dichloro-o-aminophenol with 1x8-chloronaphthol-3 6-disulfonic acid, which is also obtained as a dark powder soluble in water with a red color. You give up chromed wool or by re-chroming the color that occurs in an acid bath real shades of blue.
DENDAT174905D Active DE174905C (en)

Publications (1)

Publication Number Publication Date
DE174905C true DE174905C (en)

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ID=439607

Family Applications (1)

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Country Status (1)

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DE (1) DE174905C (en)

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