Collect. Czech. Chem. Commun.
1982, 47, 1310-1314
https://doi.org/10.1135/cccc19821310
The dissociation constants of eriochromcyanine R and bromopyrogallol red in the presence of carbethoxypentadecyltrimethylammonium bromide (Septonex)
Vlasta Škarydová and Ludmila Čermáková
Department of Analytical Chemistry, Charles University, 128 40 Prague 2
Abstract
The values of the mixed dissociation constants pKa of triphenylmethane dyes (eriochromcyanine R and bromopyrogallol red) in dependence on the concentration of cation-active tenside (1-carbethoxypentadecyltrimethylammonium bromide - Septonex) were found from spectrophotometric data and the effect of formation of micelle tenside aggregates was evaluated.
