Journal of Chemical and Engineering Data, Vol.56, No.10, 3910-3913, 2011
Solubility of Bisphenol A in Supercritical Carbon Dioxide
The solubility of solid bisphenol A (4,4'-(propane-2,2-diyl)diphenol) in supercritical carbon dioxide (SC-CO(2)) has been measured at temperatures of T = 313 K, T = 333 K, and T = 353 K and in the pressure range 12 MPa < P < 20 MPa, using a variable-volume view cell according to the synthetic method. The solubility increases with increasing pressure and temperature, ranging from 1.8.10(-5) (mole fraction) at T = 313 K and P = 16.4 MPa to 7.7.10(-5) (mole fraction) at T = 353 K and P = 14.6 MPa. The solubility data obtained have been correlated using the Peng-Robinson equation of state with quadratic mixing rules. The results obtained are useful for the design of processes for the synthesis or recycling of polycarbonate in supercritical CO(2).