Acoustic and thermodynamic behavior of cobalt acetylacetonate in aqueous sodium hydroxide

Viscosity (?) density (?) and ultrasonicvelocity (U) in binary mixtures of cobalt acetylacetonate with aqueousSodium Hydroxide were measured at 350C, 400C, 45ºC and atmosphericpressure by using a single-crystal interferometer at a frequency of 2MHz,The Parameters and concentrations were used to calculating adiabatic compressibility (?), inter molecularfree length (Lf), Specific acoustic impedance (Z). apparent molal compressility (?k), solvation number (Sn) and relative association (Ra). The resultsindicate that there is significant interaction between solute and solvent.