Measurements of the Speed of Sound and Density of Aqueous Solutions of the First-Row Transition Metal Halides.3.Apparent Molar Compressibilities and Volumes of Aqueous CoI_2 and NiI_2 within the Temperature Range 291.15 K to 297.15 K

摘要

The densities and speeds of sound in aqueous solutions of CoI_2 and NiI_2 were measued at concentrations from (0.1 to 1.4) mol·kg~(-1) and temperatures from (291.15 to 297.15) K. The adiabatic compressibility coefficients, #kappa#_S, appaent molar volumes, V_#phi#, and adiabatic compressibilities, K_(s,#phi#), were determined. The corresponding limiting apparent molar quantities were found by extrapolation to infinite dilution. The measurement results were compared with those obtained previously for other copper and nickel halides.