Measurements of Vapor Pressure and Saturated Liquid Density for HFO–1234ze(E) and HFO–1234ze(Z)

Vapor pressure and saturated liquid density for HFO–1234ze(E) and HFO–1234ze(Z) were measured in the temperature range from 300 to 400 K by using the extraction method. Experimental uncertainties are estimated to be 0.028 K for temperature, 0.4 kPa for pressure, and 0.9 kg·m–3 for density. Vapor pressures were obtained in the pressure range from 526 to 3462 kPa for HFO–1234ze(E) and from 185 to 2309 kPa for HFO–1234ze(Z). Saturated liquid densities were obtained in the density range from 670 to 1158 kg·m–3 for HFO–1234ze(E) and from 843 to 1220 kg·m–3 for HFO–1234ze(Z). These data are compared with the existing equations of state.