Compressed and saturated liquid densities for 18 halogenated organic compounds

Journal Article · Wed Jan 01 04:00:00 EST 1997 · Journal of Chemical and Engineering Data

DOI:https://doi.org/10.1021/je960266e· OSTI ID:438918

Defibaugh, D R; Moldover, M R ^[1]

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1. National Inst. of Standards and Technology, Gaithersburg, MD (United States)

The pressure-density-temperature P({rho},T) behavior of 18 liquids that are potential working fluids in thermal machinery has been measured using a vibrating tube densimeter. For each liquid, the data were taken on isotherms spaced at intervals of 5 K to 10 K spanning the temperature range 245 K to 370 K. The pressures ranged from just above the vapor pressure (or the critical pressure) to 6500 kPa. The results of measurements at more than 12,000 thermodynamic points are summarized by correlating functions. Comparison with data from other laboratories indicates that the relative expanded uncertainty in the measured densities is less than 0.05%, except in the critical region. The repeatability of the vapor pressure to obtain the density of the liquid at the vapor pressure. The fluids studied (and their designations by the refrigeration industry) were trichlorofluoromethane (R11), chlorodifluoromethane (R22), 1,1-dichloro-2,2,2-trifluoroethane (R123), 1,2-dichloro-1,2,2-trifluoroethane (R123a), 1-chloro-1,2,2,2-tetrafluoroethane (R124), 1,1,2,2-tetrafluoroethane (R134), 1,1,1,2-tetrafluoroethane (R134a), 1,1-dichloro-1-fluoroethane (R141b), 1,1,1-trifluoroethane (R143), 1,1,2-trifluoroethane (R143a), pentafluorodimethyl ether (E125), 1,1-difluoroethane (R152a), octafluoropropane (R218), 1,1,1,2,3,3,3-heptafluoropropane (R227ea), 2-(difluoromethoxy)-1,1,1-trifluoroethane (E245), 1,1,1,2,2-pentafluoropropane (R245cb), 1,1,1,3,3-pentafluoropropane (R245fa), and propane (R290).

• Sponsoring Organization: USDOE, Washington, DC (United States)
• DOE Contract Number: FG02-91CE23810
• OSTI ID: 438918
• Journal Information: Journal of Chemical and Engineering Data, Journal Name: Journal of Chemical and Engineering Data Journal Issue: 1 Vol. 42; ISSN 0021-9568; ISSN JCEAAX
• Country of Publication: United States
• Language: English

Related Subjects

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
54 ENVIRONMENTAL SCIENCES
AIR CONDITIONERS
CHLOROFLUOROCARBONS
DENSITY
EXPERIMENTAL DATA
MATERIAL SUBSTITUTION
REFRIGERANTS
REFRIGERATING MACHINERY
THERMODYNAMIC PROPERTIES