Xr. Huang et al., INTERACTION BETWEEN BROMOPYROGALLOL RED ANIONIC DYE AND CATIONIC SURFACTANTS AND ITS APPLICATION IN THE DETERMINATION OF CATIONIC SURFACTANTS, Indian journal of chemistry. Sect. A: Inorganic, physical, theoretical & analytical, 36(12), 1997, pp. 1097-1100
Citations number
14
Journal title
Indian journal of chemistry. Sect. A: Inorganic, physical, theoretical & analytical
The binary interactions between bromopyrogallol red anionic dye and ca
tionic surfactants (cetylpyridinium chloride and cetyltrimethylammoniu
m bromide) have been studied by UV-visible spectrophotometry. The effe
ct of bromopyrogallol red on the critical micelle concentration of the
cationic surfactants and the effect of the cationic surfactants on th
e acid-base dissociation equilibrium of bromopyrogallol red have been
discussed. Based on the spectral characteristics of the two binary int
eractions, a new chromogenic system has been developed for micro deter
minations of the two cationic surfactants.