Saturated-liquid densities and vapor pressures of 1,1,1-trifluoroethane, difluoromethane, and pentafluoroethane

Journal Article · Thu Mar 31 23:00:00 EST 1994 · Journal of Chemical and Engineering Data; (United States)

DOI:https://doi.org/10.1021/je00014a025· OSTI ID:7288085

Widiatmo, J V; Sato, Haruki; Watanabe, Koichi ^[1]

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1. Keio Univ., Yokohama (Japan). Dept. of Mechanical Engineering

Saturated-liquid densities and vapor pressures of HFC-143a (1,1,1-trifluoroethane), HFC-32(difluoromethane), and HFC-125 (pentafluoroethane) were measured by a magnetic densimeter coupled with a metallic bellows in the range of temperatures from 220 to 340 K. The experimental uncertainties for temperature, pressure, and density measurements are estimated to be not greater than [+-]15 mK, [+-]10 kPa (for HFC-143a) or [+-]2 kPa (for HFC-32 and HFC-125), and [+-]0.2%, respectively. The purities of HFC-143a, HFC-32, and HFC-125 used in the present measurements are 99.0 mol %, 99.998 mass %, and 99.8 mass %, respectively.

• OSTI ID: 7288085
• Journal Information: Journal of Chemical and Engineering Data; (United States), Journal Name: Journal of Chemical and Engineering Data; (United States) Vol. 39:2; ISSN JCEAAX; ISSN 0021-9568
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201* -- Chemical & Physicochemical Properties
54 ENVIRONMENTAL SCIENCES
540120 -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (1990-)
CHLOROFLUOROCARBONS
COMBUSTION PROPERTIES
DATA
DENSITY
EXPERIMENTAL DATA
FLAMMABILITY
FLUIDS
FLUORINATED ALIPHATIC HYDROCARBONS
HALOGENATED ALIPHATIC HYDROCARBONS
INFORMATION
MATERIAL SUBSTITUTION
MEASURING METHODS
NUMERICAL DATA
ORGANIC CHLORINE COMPOUNDS
ORGANIC COMPOUNDS
ORGANIC FLUORINE COMPOUNDS
ORGANIC HALOGEN COMPOUNDS
PHYSICAL PROPERTIES
REFRIGERANTS
THERMODYNAMIC PROPERTIES
VAPOR PRESSURE
WORKING FLUIDS