Sound dispersion and attenuation in concentrated H2SO 4 by visible and ultraviolet Brillouin spectroscopy

P. Benassi, M. Nardone, Andrea Giugni*

*Corresponding author for this work

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2 Scopus citations


The acoustic properties of highly concentrated H2SO4 are investigated performing visible and ultraviolet Brillouin scattering measurements. We analyzed the isotropic and anisotropic spectra of this molecular liquid in a wide temperature and exchanged wavector range in order to study the evolution of its sound velocity and viscosity. This allows us to extract the parameters required to describe its viscoelastic relaxation behavior. We found that the behavior of the hydrodynamic parameters of this molecular liquid shares some similarities with that of water indicating a rather high increase of sound velocity if compared to that measured by ultrasonics.

Original languageEnglish (US)
Article number034503
JournalJournal of Chemical Physics
Issue number3
StatePublished - Jul 21 2011

ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Physical and Theoretical Chemistry

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