Physical properties of aqueous solutions of 1-propanol near its pequliar point

Autor(en)

Leonid A. Bulavin, Oksana I. Bilous, Vladimir Y. Chechko, Yuliia M. Stula

Abstrakt

The work is devoted do the investigation of ultrasound absorption in aqueous solutions of 1- and 2-propanols near their peculiar points. It is assumed that the anomalous ultrasound absorption is caused by the formation of unstable nuclei of a new phase. It is noted, that the concentrations and , where the intensities of molecular light scattering and ultrasound absorption take their maxima respectively as well as the point where the concentration curves for differ temperatures intersect are close to each other. A theoretical model for the ultrasound absorption by a nucleus is constructed. The characteristic size of nucleus and the typical time decay for its radial vibrations are estimated. The behavior of the ultrasound absorption coefficient is analyzed on resonance frequencies ( MHz) and ones removed from them (MHz). All characteristic experimental peculiarities of the resonance and classic absorption are reproduced with satisfactory accuracy in the framework of the model proposed.

Organisation(en)

Computergestützte Physik und Physik der Weichen Materie

Externe Organisation(en)

Odessa I. I. Mechnikov National University, Taras Shevchenko National University of Kyiv (KNU)

Journal

Journal of Molecular Liquids

Band

368

Anzahl der Seiten

7

ISSN

0167-7322

DOI

https://doi.org/10.1016/j.molliq.2022.120642

Publikationsdatum

12-2022

Peer-reviewed

Ja

ÖFOS 2012

103015 Kondensierte Materie

Schlagwörter

ASJC Scopus Sachgebiete

Electronic, Optical and Magnetic Materials, Condensed Matter Physics, Materials Chemistry, Atomic and Molecular Physics, and Optics, Spectroscopy, Physical and Theoretical Chemistry

Link zum Portal

https://ucrisportal.univie.ac.at/de/publications/3ff7e0df-d112-4109-8ea1-15004e97a4b0