DENSITY, VISCOSITY AND DIELECTRIC-CONSTANT OF HCFC-225CA AND HCFC-225CB AT TEMPERATURES FROM 293-K TO 323-K AND PRESSURES UP TO 80-MPA

New-experimental data on the density, viscosity and dielectric constant of HCFC-225ca (CHCl2-CF2-CF3) and HCFC-225cb (CHClF-CF2-CClF2) in the liquid phase-are presented at temperatures from 293 to 323 K and pressures from 0.1 to 80 MPa. The measurements were carried out by a vibrating-tube densitometer, a falling-cylinder viscometer and a high-pressure capacitance cell using an LCR-meter. The uncertainties of the measurements axe estimated to be less than 0.1% for the density, 2% for the viscosity, and 1% for the dielectric constant. The experimental data are correlated with pressure or density along the isotherms by several empirical equations.