PVT property measurements for the hydrofluorocarbons R143a, R125, and R32 are presented in the gaseous phase including the region near saturation. The measurements were performed by means of magnetic suspension densimeter. One hundred and two PVT properties for R143a, 144 PVT properties for R125, and 101 PVT properties for R32 were obtained in the range of temperature from (283 to 323) K and pressures up to 3.2 MPa. The experimental uncertainties are estimated to be 10 mK for temperature, (0.74 to 0.84) kPa for pressure and (0.03 % + 0.005 kg·nr-3) for density. The sample purities of R143a, R125, and R32 were better than 99.99%. The measurements are compared with the available data including the values calculated from existing equations of state.
ASJC Scopus subject areas
- Chemical Engineering(all)