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Volume 17, Issue 3
  • ISSN: 2405-5204
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Abstract

Introduction

Acoustic parameters can help us understand how temperature and concentration affect the behaviour of potassium ferrocyanide and potassium chromate electrolytes in the aqueous solvent Dimethylformamide.

Methods

The solution's density (ρ), viscosity (η), and ultrasonic speed (u) were measured at various concentrations and temperatures (ranging from 293 K to 313 K) using a pycnometer, an Ostwald viscometer, and an ultrasonic interferometer at frequencies of 1MHz, respectively. Based on these measurements, other acoustic parameters were calculated, such as free length (Lr), internal pressure (πi), adiabatic compressibility (β), acoustic impedance (Z), relaxation time (τ), and Gibbs free energy (ΔG).

Results

These acoustic and thermodynamic parameters were used to explore various interactions, molecular motion, and interaction modes, as well as their effects, which were influenced by the size of the pure component and the mixtures. The analysis showed that changes in temperature and concentration led to specific parameter differences, which affected the interactions between the solute and solvent.

Conclusion

This study demonstrated that increasing the concentration of the mixture increased the density, viscosity, and ultrasonic velocity due to the interaction between the solute and solvent, indicating molecular interaction in the mixture.

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2024-04-16
2024-11-19

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/content/journals/rice/10.2174/0124055204296907240330083154
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Thermo-Acoustic Behaviour of K2CrO4 and K4 [Fe(CN)6] in Aqueous Dimethylformamide at Different Temperatures
Recent Innovations in Chemical Engineering (Formerly Recent Patents on Chemical Engineering) 17, 190 (2024); https://doi.org/10.2174/0124055204296907240330083154
/content/journals/rice/10.2174/0124055204296907240330083154
/content/journals/rice/10.2174/0124055204296907240330083154
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  • Article Type:     Research Article
Keyword(s): acoustic impedance; adiabatic compressibility; gibbs free energy; internal pressure; relaxation time; Ultrasonic velocity

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