butyl methacrylate

Densities and excess volumes of the binary systems of butyl methacrylate with acetonitrile;  acetic acid, benzene, 1,2-dichlorethane, and hexane have been measured as a function of composition at 293 K and atmospheric pressure by pycnometric method. The measured excess volumes were correlated by polynomials. The partial molar volumes were calculated by experimental data.

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.