In the present study, surface light scattering (SLS) was used for the simultaneous determination of liquid kinematic viscosity and surface tension of 2,3,3,3-tetrafluoroprop-1-ene (R1234yf) and of trans-1,3,3,3-tetrafluoroprop-1-ene (R1234ze) under saturation conditions. A new SLS apparatus was built up and checked with 1,1,1,2-tetrafluoroethane (R134a), and a good agreement of our data from SLS with literature could be found. With the new apparatus, R1234yf and R1234ze were investigated in the temperature ranges between (293 and 365) K and between (295 and 373) K. For determination of the liquid kinematic viscosity the expanded uncertainties on a confidence level of more than 95 % (k = 2) are estimated to be +- 2 % for reduced temperatures Tr (= T/Tc) less than 0.95, and +- 6 % for Tr close to 0.99. For the surface tension, the expanded uncertainties are less than +- 1.5 % (k = 2) in the whole temperature range.
Compounds
#
Formula
Name
1
C3H2F4
2,3,3,3-tetrafluoro-1-propene
2
C3H2F4
trans-1,3,3,3-tetrafluoropropene
3
C2H2F4
1,1,1,2-tetrafluoroethane
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.