Contents - Index



R1243zf provides high accuracy thermodynamic properties for 3,3,3-trifluoroprop-1-ene, CF3CF=CH2, CAS number 677-21-4, MW 96.05 g/gmole using the Fundamental Equation of State presented in:


"Fundamental Equations of State for cis-1,3,3,3-Tetrafluoropropene [R-1234ze(Z)] and 3,3,3-Trifluoropropene (R-1243zf))"

Ryo Akasaka  and E. Lemmon

J. Chem. Eng. Data, April 18, 2019


Versions previous to 10.696 used the equation of state reported in:


"A Preliminary Equation of State for 3,3,3-trifluoroprop-1-ene (R-1243zf)"

Ryo Akasaka, Yukihiro Higashi, Akio Miyara,J. Steven Brown and Shigeru Koyama


Boulder, CO, USA, June 24, 2015


The correlation is valid for temperatures in the range between 234 K and 430K for pressures less than 35 MPa.  Enthalpy and entropy values are referenced to 200 kJ/kg and 1 kJ/kg-K, respectively for saturated liquid at 273.15 K.


Surface tension information is provided from:


Surface tension of low GWP refrigerants R1243zf, R1234ze(Z), and R1233zd(E)

Chieko Kondou, Ryuichi Nagata, Noriko Nii, Shigeru Koyama, Yukihiro Higashi

Int. J. of Refrigeration, Vol. 53, pp. 80-89, 2015.



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