THERMODYNAMIC PROPERTIES OF 1,1-DICHLORO-1-FLUOROETHANE (R141B)

Thermodynamic properties of 1,1-dichloro-1-fluoroethane (R141b) were m easured using a vibrating-tube densimeter and two different ebulliomet ric techniques. The densimeter was used to measure compressed liquid d ensities, and the ebulliometers were used to study the vapor pressure. Measurements of the density were made between 278 and 369 K and betwe en 100 and 6000 kPa. The vapor pressure was measured from 253 to 355 K at pressures from 10 to 449 kPa. Both the compressed liquid and the v apor pressure results are compared with other published data. Our resu lts for the vapor pressure have been combined with results already pub lished to obtain a correlation for the vapor pressure from 253 K to th e critical point.