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

P. Benassi; M. Nardone; A. Giugni

doi:10.1063/1.3609975

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

P. Benassi, M. Nardone, A. Giugni^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

3 Scopus citations

Abstract

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 language	English (US)
Article number	034503
Journal	JOURNAL OF CHEMICAL PHYSICS
Volume	135
Issue number	3
DOIs	https://doi.org/10.1063/1.3609975
State	Published - Jul 21 2011
Externally published	Yes

ASJC Scopus subject areas

General Physics and Astronomy
Physical and Theoretical Chemistry

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abstract = "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.",

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AB - 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.

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

Abstract

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