Record Display for the EPA National Library Catalog

RECORD NUMBER: 413 OF 503

Main Title Spectrophotometric Determination of 4-Aminoazobenzenes, 4-Aminostilbenes, Schiff Bases, and Analogous Compounds with 3-Methyl-2-Benzothiazolone Hydrazone.
Author Sawick, Eugene ; Hause, Thomas R. ;
CORP Author Robert A. Taft Sanitary Engineering Center, Cincinnati, Ohio.
Year Published 1961
Stock Number PB-215 364
Additional Subjects ( Amines ; Colorimetric analysis) ; ( Spectroscopic analysis ; Amines) ; ( Carcinogens ; Spectroscopic analysis) ; Stilbene/amino ; Benzothiazolinone/hydrazone-methyl ; Aniline/phenylazo
Holdings
Library Call Number Additional Info Location Last
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Status
NTIS  PB-215 364 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 15p
Abstract
3-Methyl-2-benzothiazolone hydrazone is shown to be a powerful and versatile electrophilic reagent which can be used for the spectral detection and determination of strongly nucleophilic molecules containing a carbon atom of high electron density. The determination of approximately 50 azo dyes and a smaller group of stilbene and Schiff base derivatives by a new procedure for these compounds is described. 4-Amino-, 4-alkylamino, and 4-dialkylamino derivatives of azobenzene can be readily analyzed. The determination of N,N-dialkyl-4-aminoazobenzene was thoroughly investigated. (Author)