Volumetric and viscosity behaviors of the chromic anhydride + sodium dichromate + sodium chromate + water from (298.15 to 333.15) K

The densities and viscosities of chromic anhydride + sodium dichromate + sodium chromate + water quaternary mixtures and sodium dichromate + sodium chromate + water ternary mixtures have been measured at the temperatures(298.15, 303.15, 313.15, 323.15 and 333.15)K. The experimental data were correlated with the Vogel–Tamman–Fulcher equation. The apparent molar volumes, limiting partial molar volumes and viscosity B-coefficient of chromic anhydride were calculated from the experimental measurements. The solute–solute interactions, solute-mixed solvent interactions and the structural-making effect of chromic anhydride have been discussed using Hepler criterion and Jones–Dole equation.