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IJPAP Vol.48(09) [September 2010] >


Title: Acoustic and viscosity studies of alkali metals and ammonium halides in aqueous dextran solutions at four different temperatures
Authors: Dash, U N
Roy, G S
Talukdar, M
Moharatha, D
Keywords: Aqueous dextran solutions
Alkali metal halides
Apparent molar volumes
Isentropic compressibility
Issue Date: Sep-2010
Publisher: CSIR
Abstract: The density and viscosity of halides of potassium, sodium and ammonium have been measured in different aqueous solutions of dextran at 298.15, 303.15, 308.15 and 313.15 K and the ultrasonic velocity in these solutions has been measured at 298.15 K. Various parameters such as isentropic compressibility, acoustic impedance, apparent molar volume, partial molar volume, relative association and relaxation time have been calculated using experimentally determined values of ultrasonic velocity and density. The variation of these parameters has been discussed in the light of solute-solvent and solute-solute interactions. The viscosity data have been analyzed on the basis of Jones-Dole equation to interpret the ion-solvent interactions.
Page(s): 651-657
ISSN: 0975-1041 (Online); 0019-5596 (Print)
Source:IJPAP Vol.48(09) [September 2010]

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