Measurements of the saturated vapor and liquid densities near the critical point for trans-1,3,3,3-tetrafluoropropene (CFH?CHCF3; HFO-1234ze(E)) were carried out in the reduced temperature range of 0.962 less than T/Tc less than 1 and in the reduced density range of 0.40 less than ?/?c less than 1.70. Taking into consideration the meniscus disappearing level as well as the intensity of the critical opalescence, the critical temperature Tc and critical density ?c were determined experimentally. The critical pressure Pc was calculated by extrapolating the vapor-pressure equation to the critical temperature. The critical parameters reported in this paper are Tc = (382.51 +- 0.01) K, ?c = (486 +- 3) kg*m-3, Vc = (235 +- 2) cm3*mol-1, and Pc = (3632 +- 3) kPa. The saturated liquid density correlation is formulated using the present data. In addition, the critical exponent ? along the coexistence curve was also discussed.
Compounds
#
Formula
Name
1
C3H2F4
trans-1,3,3,3-tetrafluoropropene
Datasets
The table above is generated from the ThermoML associated json file (link above).
POMD and RXND refer to PureOrMixture and Reaction Datasets. The compound numbers are included in properties, variables, and phases, if specificied;
the numbers refer to the table of compounds on the left.