THERMODYNAMIC PROPERTIES OF DIFLUOROMETHANE

Authors
DEFIBAUGH DR MORRISON G WEBER LA
Citation
Dr. Defibaugh et al., THERMODYNAMIC PROPERTIES OF DIFLUOROMETHANE, Journal of chemical and engineering data, 39(2), 1994, pp. 333-340
Citations number
18
Categorie Soggetti
Engineering, Chemical",Chemistry
Journal title
Journal of chemical and engineering data → ACNP
ISSN journal
00219568
Volume
39
Issue
2
Year of publication
1994
Pages
333 - 340
Database
ISI
SICI code
0021-9568(1994)39:2<333:TPOD>2.0.ZU;2-A
Abstract
The pressure-volume-temperature (PVT) behavior of difluoromethane (R32 ) has been measured using a vibrating tube densimeter apparatus and a Burnett/isochoric apparatus. Liquid PVT data from the vibrating tube d ensimeter ranged in temperature from 242 to 348 K with a pressure rang e of 2000-6500 kPa. Data from the Burnett apparatus consisted of 11 is ochores for the gas and supercritical fluid, along with vapor pressure measurements. The temperature ranged from 268 to 373 K. The gas-phase data are correlated with a virial equation of state. The compressed l iquid data are fit with an abbreviated form of the modified Benedict-W ebb-Rubin (mBWR) equation. A table of thermodynamic properties is pres ented for the saturated liquid and vapor states.