Higashi, Y.
(2008),
Vapor-Liquid Equilibrium, Coexistence Curve, and Critical Locus for Pentafluoroethane +1,1,1,2-Terafluoroethane (R-125+R-134a), Journal of Chemical and Engineering Data
(Accessed October 13, 2025)
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Vapor-Liquid Equilibrium, Coexistence Curve, and Critical Locus for Pentafluoroethane +1,1,1,2-Terafluoroethane (R-125+R-134a)
Published
Author(s)
Yukihiru Higashi
Abstract
The vapor-liquid equilibrium for pentafluoroethane +1,1,1,2-tetrafluoroethane (R-125 +R-134a) was measured by the static method in the temperature range between 283 and 313K. The vapor-liquid coexistence curve near the critical point was measured by the observation of the meniscus disappearance. The critical temperatures and critical densities of a 30 mass% R-125 and 70 mass% R-125 mixture were determined from the saturation densities along the coexistence curve in the critical region. In addition, the critical locus for the R-125+R-134a mixture is correlated as the function of composition.Citation
Journal of Chemical and Engineering Data
Pub Type
Journals
Keywords
coexistance curve, critical locus, HFC refrigerants, R-125+R-134a mixture, REFPROP 6.0, saturated density vapor-liquid
Citation
Issues
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Created October 16, 2008