ABSTRACT

Isothermal vapor-liquid equilibrium data of binary trifluoroiodomethane (R13I1) + 1,1,2,2-tetrafluoroethane (R134) systems at 258.150, 263.150, 273.150 and 283.150K were measured by a recirculation apparatus with visual windows. The measured uncertainties of the temperature, pressure, and compositions are less than +-5 mK, +-0.0005 MPa, and +-0.005, respectively. All the experimental data were correlated by the Peng-Robinson (PR) EoS with the Huron-Vidal (HV) mixing rule utilizing the non-random two-liquid (NRTL) activity coefficient model. Azeotropic behavior can be found at the measured temperature range.

Compounds

#	Formula	Name
1	CF3I	trifluoroiodomethane
2	C2H2F4	1,1,2,2-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.
Type	Compound-#	Property	Variable	Phase	Method	#Points
POMD	1	Vapor or sublimation pressure, kPa ; Liquid	Temperature, K; Liquid	Liquid Gas	Closed cell (Static) method	4
POMD	2	Vapor or sublimation pressure, kPa ; Liquid	Temperature, K; Liquid	Liquid Gas	Closed cell (Static) method	4
POMD	2 1	Azeotropic pressure, kPa ; Liquid	Temperature, K; Liquid	Liquid Gas	By X=Y	4
POMD	2 1	Azeotropic composition: mole fraction - 1 ; Liquid	Temperature, K; Liquid	Liquid Gas	By X=Y	4
POMD	2 1	Vapor or sublimation pressure, kPa ; Gas	Mole fraction - 1; Liquid Temperature, K; Liquid	Gas Liquid	Closed cell (Static) method	32
POMD	2 1	Mole fraction - 1 ; Gas	Mole fraction - 1; Liquid Temperature, K; Liquid	Gas Liquid	Chromatography	32

Thermodynamics Research Center / ThermoML | Fluid Phase Equilibria

Phase equilibrium for the binary azeotropic mixture of trifluoroiodomethane (R13I1) + 1,1,2,2-tetrafluoroethane (R134) at temperatures from 258.150 to 283.150 K

Dong, X.[Xueqiang], Gong, M.[Maoqiong], Wu, J.[Jianfeng]

ABSTRACT