Accession Number : AD0774815

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

Descriptive Note : Technical rept. Jun 71-Jan 72,

Corporate Author : EDGEWOOD ARSENAL ABERDEEN PROVING GROUND MD

Personal Author(s) : Deiner,Albert ; Polley,Charles

Report Date : FEB 1974

Pagination or Media Count : 28

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)

Descriptors :   *Dyes, Chemical analysis, Molecular structure, Impurities, Thin layer chromatography, Infrared spectra, Visible spectra

Subject Categories : Organic Chemistry

Distribution Statement : APPROVED FOR PUBLIC RELEASE