DE44268C - Process for the preparation of phthalimide blue - Google Patents

Process for the preparation of phthalimide blue

Info

Publication number
DE44268C
DE44268C DENDAT44268D DE44268DA DE44268C DE 44268 C DE44268 C DE 44268C DE NDAT44268 D DENDAT44268 D DE NDAT44268D DE 44268D A DE44268D A DE 44268DA DE 44268 C DE44268 C DE 44268C
Authority
DE
Germany
Prior art keywords
phthalimide
preparation
blue
resorcinol
phthalimidine
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
DENDAT44268D
Other languages
German (de)
Original Assignee
Dr. phil. L. REESE in Leipzig, Turnerstr. 13
Publication of DE44268C publication Critical patent/DE44268C/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
    • C09B11/00—Diaryl- or thriarylmethane dyes
    • C09B11/04—Diaryl- or thriarylmethane dyes derived from triarylmethanes, i.e. central C-atom is substituted by amino, cyano, alkyl
    • C09B11/06—Hydroxy derivatives of triarylmethanes in which at least one OH group is bound to an aryl nucleus and their ethers or esters
    • C09B11/08—Phthaleins; Phenolphthaleins; Fluorescein

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Indole Compounds (AREA)

Description

BERLIN. GEDRUCKT IN DER REICHSDRUCKEREIBERLIN. PRINTED IN THE REICH PRINTING COMPANY

Claims (1)

Patent-Anspruch:Patent claim: Verfahren zur Herstellung eines Farbstoffes, darin bestehend, dafs Phtalimid und Resorcin durch concentrirte Schwefelsäure als wasserentziehendes Mittel condensirt werden und hierdurch die Resorcinphtalimidinsulfosäure entsteht, deren Salze zur Färbung Verwendung finden.A process for the preparation of a dye consisting of phthalimide and resorcinol be condensed by concentrated sulfuric acid as a dehydrating agent, and This creates the resorcinol phthalimidine sulfonic acid, the salts of which are used for coloring Find.
DENDAT44268D Process for the preparation of phthalimide blue Expired - Lifetime DE44268C (en)

Publications (1)

Publication Number Publication Date
DE44268C true DE44268C (en)

Family

ID=319512

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT44268D Expired - Lifetime DE44268C (en) Process for the preparation of phthalimide blue

Country Status (1)

Country Link
DE (1) DE44268C (en)

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