The Analysis of Smoke Dyes. II. The Determination of 1-Amino-4-Hydroxyanthraquinone in 1,4-Diaminoanthraquinone.

Abstract

Leuco 1-amino-4-hydroxyanthraquinone has been identified as an impurity in 1,4-diamino-2,3-dihydroanthraquinone. Identification of this impurity was made by visible and infrared spectroscopy and thin-layer chromatography. The amount of the impurity 1-amino-4-hydroxyanthraquinone can be quantitatively determined in the presence of 1,4-diaminoanthraquinone by converting the 1-amino-4-hydroxyanthraquinone to the anion by reaction with 0.03M KOH in ethanol. Anion formation is accompanied by a bathochromic shift in the visible region to 603 nm. (Modified author abstract)

Document Details

Document Type
Technical Report
Publication Date
Feb 01, 1974
Accession Number
AD0774815

Entities

People

  • Albert Deiner
  • Charles Polley

Tags

DTIC Thesaurus Topics

  • Abstracts
  • Chromatography
  • Identification
  • Impurities
  • Infrared Spectroscopy
  • Spectroscopy
  • Thin Layer Chromatography

Readers

  • Analytical Chemistry
  • Chemistry (specifically Chemical Fluorescence)