Experimental determination of the phase behavior of binary mixtures: methanehexane and methanebenzene

摘要: Abstract The phase diagrams of methanehexane and methanebenzen mixtures have been determined at 323 K 373 using an in-situ infrared absorption method. mathematical treatment the spectra allowing determination molar density each species in is described with a special emphasis on problem baseline drift. results obtained for both bubble dew curves are good agreement those previously published by other authors different experimental methods. Moreover present measurements allowed us to make accurate investigation critical region. These new data compared computed either well-known Peng-Robinson equation state (Peng Robinson, 1976) associated classical Van der Waals mixing rules or predictive method based group contributions developed Abdoul Peneloux (1991).