Vapor-liquid equilibria for hydrogen fluoride + 1,1-difluoroethane at 288.23 and 298.35 K

Journal Article · Tue Jul 01 00:00:00 EDT 1997 · Journal of Chemical and Engineering Data

DOI:https://doi.org/10.1021/je960397f· OSTI ID:529760

Lee, J; Kim, H ^[1]; Lim, J S; Kim, J D; Lee, Y Y ^[2]

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1. Seoul National Univ. (Korea, Republic of). Dept. of Chemical Engineering
2. Korea Inst. of Science and Technology, Seoul (Korea, Republic of). Div. of Environmental and CFC Alternatives Technology

Isothermal vapor-liquid equilibria for hydrogen fluoride + 1,1-difluoroethane at 288.23 and 298.35 K were measured using a circulation type apparatus equipped with an equilibrium view cell. The compositions of both vapor and liquid phases were analyzed by an on-line gas chromatographic method. They were compared with PTx equilibrium data measured by the total pressure method. The experimental data were correlated with Anderko`s equation of state using the Wong-Sandler mixing rule as well as the van der Waals one-fluid mixing rule. The Wong-Sandler mixing rule gives better results, and the relevant parameters are presented.

• OSTI ID: 529760
• Journal Information: Journal of Chemical and Engineering Data, Vol. 42, Issue 4; Other Information: PBD: Jul-Aug 1997
• Country of Publication: United States
• Language: English

Related Subjects

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
40 CHEMISTRY
REFRIGERANTS
THERMODYNAMIC PROPERTIES
VAPORS
LIQUIDS
EQUILIBRIUM
HYDROFLUORIC ACID
FLUORINATED ALIPHATIC HYDROCARBONS
EQUATIONS OF STATE
EXPERIMENTAL DATA
MANUFACTURING