ISSN print edition: 0366-6352
ISSN electronic edition: 1336-9075
Registr. No.: MK SR 9/7

Published monthly
 

Acid-base equilibriums of some azo compounds in dimethyl sulfoxide. I. Study of some dialkylaminophenylazo derivatives of 1,1-dimethyl-3,5-cyclohexadiones in DMSO and their use in titrations in DMSO

E. Kozáková, V. Madajová, P. Majer, and Z. Smetanová

Fac. Nat. Sci., Komsensky-Univ., Bratislava

 

Abstract: Acid-base properties in dimethyl sulfoxide (DMSO) of two 1,1-dimethylamino-3,5-cyclohexadione dialkylaminophenylazo derivatives, namely 2-(p-N-diethylaminophenylazo)-l5l-dimethyl-3,5-cyclohexadione (I) and 2-(p-N-ethyl-N-hydroxyethylaminophenylazo)-1, l-dimethyl-3,5-cyclohexadione (//), have been studied. Dissociation constants of / and II in DMSO have been determined spectrophotometrically. Compound I can be used as an acid-base indicator in the analysis of a mixture of a strong and weak acid in DMSO. Compound II is a suitable acid-base indicator for the determination of very weak acids in DMSO.

Full paper in Portable Document Format: 295a590.pdf (in German)

 

Chemical Papers 29 (5) 590–598 (1975)

Friday, March 29, 2024

IMPACT FACTOR 2021
2.146
SCImago Journal Rank 2021
0.365
SEARCH
Advanced
VOLUMES
European Symposium on Analytical Spectrometry ESAS 2022
© 2024 Chemical Papers