Determination of thermodynamic parameters of some fluorochlorohydrocarbons in acetons by gas chromatography at low temperature and pressurization

摘要

The device developed by the author has been proof-tested with CO_2 in methane-octane sys- tem at 0 deg. C and 689 kPa. Compared with the literature value of k=8.45, our experimental result of k=8.85 for the equilibrium ratio in the system mentioned above given a 4.8/100 rela- tive deviation. A series of straight lines can be obtained graphically by plotting 1nk vs. 1np, as shown In Fig. 2. As the pressure of the system increases, the k values of F22, F12, C_3F_6, C_4F_8 de- Crease, and the solubilities of F22, F12, C_3F_6, C_4F_8 in acetone increase.