Dissociation constants of some o,o'-substituted azo dyes.
The dissociation constants, pK(a) (H(2)L(-)) and pK(a)(HL(2-)), were determined spectrophotometrically in aqueous media at ionic strength 0.2 for six o,o'-substituted azo dyes, namely C.I. 13900, C.I. 15685, C.I. 18744, C.I. 18760, C.I. 18821 and Calmagite.
Vytras
K
K
Department of Analytical Chemistry, University of Chemical Technology, 532 10 Pardubice, Czechoslovakia.
Kalous
J
J
Cerná-Frýbortová
J
J