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Microemulsions as a medium in chemical kinetics, II. The I − + S 2 O 8 = and crystal Violet + OH − reactions in different surfactant/oil/water microemulsions
Author(s) -
Izquierdo Carmen,
Casado Julio,
Rodriguez Amalia,
Moyá Maria Luisa
Publication year - 1992
Publication title -
international journal of chemical kinetics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.341
H-Index - 68
eISSN - 1097-4601
pISSN - 0538-8066
DOI - 10.1002/kin.550240104
Subject(s) - chemistry , microemulsion , pulmonary surfactant , crystal violet , aqueous solution , reaction rate constant , kinetics , chemical kinetics , inorganic chemistry , analytical chemistry (journal) , organic chemistry , medicine , biochemistry , physics , pathology , quantum mechanics
A kinetic study of the reactions I − + S 2 O 8 = and CV + + OH − (CV = 4, 4′, 4″‐ tris (dimethylamino)triphenylmethyl chloride or crystal violet) in different water in oil microemulsions is reported. The dependence of the rate constants on the nature of the surfactant as well as on the molar ratio R = [H 2 O]/[Surfactant] has been investigated. The results are interpreted on the basis of the electrostatic interactions between the reactants and the surfactant polar heads and considering the water properties inside the aqueous core of the droplets.