ULTRASONIC VELOCITY AND BULK PROPERTIES OF MULTI-CHARGED ELECTROLYTES (POTASSIUM FERRI AND FERRO CYANIDES) IN AQUEOUS DEXTROSE SOLUTIONS AT DIFFERENT TEMPERATURES

Abstract

The ultrasonic velocity (U) of potassium ferricyanide and ferrocyanide has been measured at 298.15 K only. The density (d) and viscosity (η) of both the electrolytes have been measured in the concentration range of  1×10^-2 to 1×10^-1 mol dm^-3 in aqueous binary mixtures containing dextrose (5, 10, 15% (w/w)) at different temperatures ranging from 298.15 to 313.15K. Various important parameters, such as apparent molar volume (V_Φ), limiting apparent molar volume (V_Φ⁰), apparent molar expansibility (E_Φ), isentropic compressibility (K_s), solvation number (S_n) and other viscosity parameters have been computed using experimentally determined values of ultrasonic velocity, density and viscosity. In the light of solute-solvent and solute-solute interactions, the variation of these parameters has been enlightened. The viscosity data have been analyzed on the basis of Jones-Dole equation to know the molecular interactions.