Publication Type |
Journal Article |
Title |
Viscosity of compressed liquid 1,1,1-trifluoroethane (HFC-143a) and pentafluoroethane (HFC-125) |
Authors |
Helena Avelino João Fareleira Carla Oliveira |
Groups |
MET |
Journal |
JOURNAL OF CHEMICAL AND ENGINEERING DATA |
Year |
2006 |
Month |
September |
Volume |
51 |
Number |
5 |
Pages |
1672-1677 |
Abstract |
The viscosity of compressed liquid 1,1,1-trifluoroethane (HFC-143a) and pentafluoroethane (HFC-125) has been measured with a vibrating-wire viscometer at five temperatures between ( 254 and 293) K. The measurements were performed at pressures from above saturation up to 10 MPa, although for the isotherms at about 254 K the maximum pressure was approximately 5 MPa for HFC-143a and 7.4 MPa for HFC-125. For the isotherm at about 263 K, the highest pressure for HFC-143a was of the order of 7.5 MPa. The overall uncertainty of these results has been estimated to be less than +/- 1.0 \%. The measurements have been correlated using a scheme based on a hard-spheres model. The root mean square deviation of the experimental results from the correlations for HFC-143a and HFC-125 is +/- 0.24 \% and +/- 0.25 \%, respectively. The correlation scheme has been used to perform the small extrapolations of the present data to the saturation line to enable comparison with literature results at saturation pressure. |
DOI |
http://dx.doi.org/10.1021/je0601356 |
ISBN |
|
Publisher |
AMER CHEMICAL SOC |
Book Title |
|
ISSN |
0021-9568 |
EISSN |
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Conference Name |
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Bibtex ID |
ISI:000240496200032 |
Observations |
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