DE62504C - Process for the preparation of dyes from the analogues of Alizarin-Bordeaux - Google Patents

Process for the preparation of dyes from the analogues of Alizarin-Bordeaux

Info

Publication number
DE62504C
DE62504C DENDAT62504D DE62504DA DE62504C DE 62504 C DE62504 C DE 62504C DE NDAT62504 D DENDAT62504 D DE NDAT62504D DE 62504D A DE62504D A DE 62504DA DE 62504 C DE62504 C DE 62504C
Authority
DE
Germany
Prior art keywords
bordeaux
alizarin
preparation
dyes
analogues
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.)
Expired - Lifetime
Application number
DENDAT62504D
Other languages
German (de)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Bayer AG
Original Assignee
Farbenfabriken Vorm Friedr Bayer and Co
Publication of DE62504C publication Critical patent/DE62504C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • C09B1/00—Dyes with anthracene nucleus not condensed with any other ring
    • C09B1/02—Hydroxy-anthraquinones; Ethers or esters thereof
    • C09B1/06—Preparation from starting materials already containing the anthracene nucleus
    • C09B1/08—Dyes containing only OH-groups

Landscapes

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

Description

BERLIN GEDRUCKI' IN DER REICHSDRUCKEREI.BERLIN GEDRUCKI 'IN THE REICHSDRUCKEREI.

Claims (1)

Patent-Anspruch:Patent claim: ■Verfahren zur Darstellung neuer Alizarinfarbstoffe, darin bestehend, dafs man in dem Verfahren des Patentes No. 62018 an Stelle des Alizarinbordeaux hier Flavo- oder Anthrapurpurinbordeaux (Patent No. 60855) in concentrirter Schwefelsäurelösung mit Oxydationsmitteln, wie z. B. Braunstein oder Arsensäure, behandelt.■ Process for the preparation of new alizarin dyes, consisting in that one in the Method of patent no. 62018 instead of the alizarin bordeaux, here flavo- or anthrapurpurine bordeaux (Patent No. 60855) in concentrated sulfuric acid solution with oxidizing agents, such as B. manganese dioxide or arsenic acid treated.
DENDAT62504D Process for the preparation of dyes from the analogues of Alizarin-Bordeaux Expired - Lifetime DE62504C (en)

Publications (1)

Publication Number Publication Date
DE62504C true DE62504C (en)

Family

ID=336486

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT62504D Expired - Lifetime DE62504C (en) Process for the preparation of dyes from the analogues of Alizarin-Bordeaux

Country Status (1)

Country Link
DE (1) DE62504C (en)

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