DIELECTRIC-CONSTANT, DIELECTRIC VIRIAL-COEFFICIENTS, AND DIPOLE-MOMENTS OF 1,1,1,2-TETRAFLUOROETHANE

Authors
BARAO T DECASTRO CAN MARDOLCAR UV OKAMBAWA R STARNAUD JM
Citation
T. Barao et al., DIELECTRIC-CONSTANT, DIELECTRIC VIRIAL-COEFFICIENTS, AND DIPOLE-MOMENTS OF 1,1,1,2-TETRAFLUOROETHANE, Journal of chemical and engineering data, 40(6), 1995, pp. 1242-1248
Citations number
19
Categorie Soggetti
Engineering, Chemical",Chemistry
Journal title
Journal of chemical and engineering data → ACNP
ISSN journal
00219568
Volume
40
Issue
6
Year of publication
1995
Pages
1242 - 1248
Database
ISI
SICI code
0021-9568(1995)40:6<1242:DDVAD>2.0.ZU;2-F
Abstract
In this paper we report measurements of the dielectric constant of 1,1 ,1,2-tetrafluoroethane, HFC-134a, an environmentally acceptable refrig erant, under consideration as an alternative replacement of the chloro fluorocarbons, CFCs. The dipole moment in the gaseous phase was found to be (1.91 +/- 0.19) D, and in the liquid phase (3.54 +/- 0.01) D. We present values of the first three dielectric virial coefficients in t he gaseous phase.