vapor-liquid equilibrium

The saturated vapor pressure of butyl methacrylate solutions in acetonitrile, benzene, hexane and 1,2-diclorethane was measured by static tensimetric method in the temperature range of 291–351 K. The composition of the equilibrium phases and the activity factors were received from the experimental measurements of the temperature-dependent saturated vapor pressure. We then used the temperature and concentration dependent activity factors to calculate the thermodynamic functions of mixing of the solutions.

The saturated vapor pressure of the acrylic acid solutions in 1,2-dichloroethane and acetic acid was measured by static tensimetric method in the temperature range of 295 to 355 K. The composition of the equilibrium phases as well as the activity coefficients (γ1 and γ2) were received from the experimental measurements of the temperature-dependent saturated vapor pressure. Then we used the temperature and concentration dependent activity coefficients to calculate the excess thermodynamic functions of the solutions mixing (HE, GE, SE).

The saturated vapor pressure of ethacrylic acid solutions in acetonitrile and acetic acid was measured by a static tensimetric method in the temperature range of 295 to 355 K. The composition of the equilibrium phases as well as the activity coefficients were received from the experimental measurements of the temperature-dependent saturated vapor pressure. We then used the temperature and concentration dependent activity coefficients to calculate the excess thermodynamic functions of the solutions mixing (HE, GE, SE).