Pal, Barnana and Roy, Sudakshina (2019) Probing aqueous electrolytes with Fourier Spectrum Pulse-Echo technique. Journal of Molecular Liquids, 291. Art No-UNSP 111302. ISSN 0167-7322

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The nature of variations of ultrasonic wave velocity(v) and attenuation constant(a) with the concentration(c) in aqueous solutions of NaCl, KCl and CsCl are investigated at room temperature(25 degrees C) at 1 MHz and 2 MHz wave frequency. Fourier Spectrum Pulse-Echo (FSPE) technique is used to achieve better accuracy in measurement, particularly for a measurement. Abrupt changes in the values of v and a are noticed at particular solution concentrations for NaCl and KCl but, for CsCl, almost smooth variation in v is observed over the whole concentration range both for 1 MHz and 2 MHz. The nature of variation in v and a in these solutions are analyzed in view of other spectroscopic studies. The well-known Jones-Dole equation that explains the viscosity (eta) variation in many electrolyte solutions, offers satisfactory fits to the experimental velocity variation with parameter values characteristics of the sample. (C) 2019 Elsevier B.V. All rights reserved.

Item Type: Article
Subjects: Microstructure and Characterization
Depositing User: Bidhan Chaudhuri
Date Deposited: 15 Nov 2019 12:00
Last Modified: 15 Nov 2019 12:00

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