Viscosity of fluorinated propane isomers. 2: Measurements of three compounds and model comparisons

Journal Article · Thu Jan 01 04:00:00 EST 1998 · Journal of Chemical and Engineering Data

DOI:https://doi.org/10.1021/je970186q· OSTI ID:599806

Laesecke, A; Hafer, R F ^[1]

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1. National Inst. of Standards and Technology, Boulder, CO (United States). Physical and Chemical Properties Div.

Viscosity data are reported for three fluorinated propane isomers in the saturated-liquid state over a combined temperature range from 248 to 348 K. The compounds are 1,1,1,3,3-pentafluoropropane (R245fa), 1,1,2,2,3-pentafluoropropane (R245ca), and 1,1,1,2,3,3,3-heptafluoropropane (R227ea). The measurements were carried out in sealed gravitational capillary viscometers. The estimated uncertainty of the measurements is {+-} 3.4%. Including earlier viscosity measurements on 1,1,1,3,3,3-hexafluoropropane (R236fa) and 1,1,1,2,3,3-hexafluoropropane (R236ea), the viscosity data of all five fluids were correlated within their experimental uncertainty in terms of the rough hard-sphere model. The experimental data were also compared with predictions of the extended corresponding-states method in NIST Standard Reference Database 23 (REFPROP). Deviations range between {minus}20 and 15%.

• OSTI ID: 599806
• Journal Information: Journal of Chemical and Engineering Data, Journal Name: Journal of Chemical and Engineering Data Journal Issue: 1 Vol. 43; ISSN JCEAAX; ISSN 0021-9568
• Country of Publication: United States
• Language: English

Related Subjects

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
40 CHEMISTRY
EXPERIMENTAL DATA
FLUORINATED ALIPHATIC HYDROCARBONS
MATHEMATICAL MODELS
REFRIGERANTS
VISCOSITY