Viscosities of Gaseous 1, 2, 2-Trichloro-1, 1, 2-trifluoroethane(R113), 1, 2-Dichloro-1, 1, 2, 2-tetrafluoroethane(R114) and Chloropentafluoroethane(R115)

Abstract

Viscosities of R113, R114 and R115 were measured, using an oscillating-disk viscometer at 273.15-473.15 K and in the pressure range up to 7 MPa. Experimental viscosities were represented by equations as a function of temperature and density. The force constants for the Lennard-Jones 12-6 potential were determined from the viscosities at atmospheric pressure and various temperatures as follows.
R113 : ε/k=240.1 K, σ=0.6521 nm.
R114 : ε/k=233.6 K, σ=0.6146 nm.
R115 : ε/k=201.9 K, σ=0.5876 nm.