Summary
Continuing the study of ultrasonic absorption in electrolytes, aqueous solutions of sodium iso-valerate, lead acetate and zinc sulphate have been studied at various concentrations and temperatures over the frequency range (4÷26) MHz. The absorption due to viscosity has been estimated and the excess absorption and its variation with frequency have been explained on the basis of chemical relaxation. Solutions of several perchlorates have also been studied to determine the effect of degree of dissociation on absorption.
Riassunto
Continuando lo studio dell’assorbimento ultrasonico negli elettroliti, si sono studiate le soluzioni acquose di iso-valerianato di sodio, acetato di piombo e solfato di zinco a varie concentrazioni e temperature nel campo di frequenze (4÷26) MHz. Si è valutato l’assorbimento dovuto alla yisoosità e, in base al rilassamento chimico, si è spiegato l’assorbimento in eccesso e la sua variazione con, la frequenza. Si sono anche studiate le soluzioni di diversi perolorati per determinare l’effetto del grado di dissociazione sull’assorbimento.
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References
M. Pancholy andS. P. Singal:Nuovo Cimento,28, 282 (1962.
M. Pancholy andS. P. Singal:Journ. Phys. Soc. Japan,18, 582 (1963).
M. Pancholy andS. P. Singal:Journ. Sci. Ind. Res., B21, 70 (1962).
H. O. Kneser:Erg. Exak. Nat. Wiss.,21–22, 121 (1949).
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Panoholy, M., Singal, S.P. Ultrasonic absorption due to chemical relaxation in aqueous solutions of electrolytes. Nuovo Cim 29, 1027–1033 (1963). https://doi.org/10.1007/BF02750128
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DOI: https://doi.org/10.1007/BF02750128