Vapor pressure, vapor density, and liquid density for 1,1-dichloro-1-fluoroethane (R-141b)

Journal Article · Thu May 01 00:00:00 EDT 1997 · Journal of Chemical and Engineering Data

DOI:https://doi.org/10.1021/je9603584· OSTI ID:509413

Duarte-Garza, H A; Hwang, C A; Kellerman, S A; Miller, R C; Hall, K R; Holste, J C; Marsh, K N; Gammon, B E ^[1]

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1. Texas A and M Univ., College Station, TX (United States)

This paper presents measurements of vapor pressures from 250 K to 450 K, liquid densities from 180 K to 370 K at pressures up to 70 MPa, vapor densities at 400 K at pressures up to 1 MPa, and the critical temperature for 1,1-dichloro-1-fluoroethane (R-141b). The derived second and third virial coefficients at 400 K are {minus}459.5 {times} 10{sup {minus}6} m{sup 3}/mol and 1.93 {times} 10{sup {minus}8} m{sup 6}/mol{sup 2}. Extrapolating the observed vapor pressures to be measured critical temperature (477.5 {+-} 0.4) K provides a critical pressure of (4.194 {+-} 0.002) MPa. Using these values with the law of rectilinear diameters indicates a critical density of (3921 {+-} 6) mol/m{sup 3}. Correlations provide values which agree with the measured values for liquid densities within {+-}0.1% and vapor pressures within {+-}0.05%. All uncertainties reported in the paper are 3{sigma}.

• OSTI ID: 509413
• Journal Information: Journal of Chemical and Engineering Data, Vol. 42, Issue 3; Other Information: PBD: May-Jun 1997
• Country of Publication: United States
• Language: English

Related Subjects

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
40 CHEMISTRY
REFRIGERANTS
THERMODYNAMIC PROPERTIES
VAPOR PRESSURE
DENSITY
FLUORINATED ALIPHATIC HYDROCARBONS
CRITICAL TEMPERATURE
CRITICAL PRESSURE
EXPERIMENTAL DATA