Aqueous solutions of surfactants are characterized by the existence of
a wide range of relaxation processes. The paper reports on experiment
al results obtained with aqueous micellar solutions of bis-quaternary
ammonium ampholyte by acoustic spectroscopy. Parameters of two relaxat
ion processes lying in the frequency range above 5 MHz were determined
, and their probable molecular mechanisms are discussed. The model off
ered for the description of a fast process (local order restructuring
of a network of weak intermolecular bonds) was used to calculate therm
odynamical potentials of the reaction and its transmission coefficient
.