Pressure-volume-temperature relation for a mixture of monochlorotrifluoromethane and trifluoromethane

Abstract

The pressure-volume-temperature properties of a 50-50 mole % mixture of monochlorotrifluoromethane and trifluoromethane in the ranges of 14.7 to 74.8 atm., 1.6 to 19.1 cc. per gram, and 298O to 492O K. were correlated, using the Martin-Hou equation of state. Vapor pressures and saturated liquid densities were determined to near the critical temperature (292.6O K.) from 203O and 229.8O K., respectively.

Vapor-liquid equilibrium in binary systems of chlorotrifluoromethane with n-butane and isobutane

“…Densities and vapor pressures of pure R 13 have been measured by several workers (2-6), and several reports exist for the measurement of the densities and vapor-liquid equilibrium properties for R 13 in mixed refrigerant systems, generally with R 12, R 14, and R 23 (7)(8)(9)(10)(11)(12). As far as we are aware, however, the present measurements are the first that have been reported on mixtures of R 13 with hydrocarbons at elevated temperatures and pressures.…”

Computer Programs for the Calculation of Thermodynamic Properties of Cryogens and other Fluids

“…This utility allows the user to calculate thermodynamic properties defined by a number of different pairs of input variables. [1][2][3][4][5][6][7][8][9], hydrocarbons [10][11][12][13][14][15], water [16], carbon dioxide [17], ammonia [18] and refrigerants [19][20][21][22][23][24][25][26][27][28][29][30][31][32][33][34][35]. These equations are explicit in dimensionless Helmholtz energy, or have been converted to that form.…”

Vapor-liquid equilibiriums of the trifluoromethane-trifluorochloromethane system

“…A specified composition of trifluoromethane and trifluorochloromethane, particularly 49-51 mol % trifluoromethane, is patented (1) and marketed as Refrigerant 503. An investigation of Refrigerant 503 has been published (10) in which the equimolar mixture was treated as a pure material. In our continuing program of studies of the thermodynamic properties of mixtures of the more volatile fluorocarbons, it became of interest to determine the vapor-liquid equilibria of the trifluoromethane-trifluorochloromethane binary over the complete composition range.…”