acetonitryle

Density and excess volume of the binary systems of iso-buthylmethacrylate with acetonitryle and benzene have been measured as a function of concentrations at 293 K and
atmospheric pressure by pycnometric method. The values of excessive and partial molar volumes of the components were calculated. The excess volume for the acetonitryle – isobuthylmethacrylate system receives negative values and for
the benzene system – isobuthylmethacrylate – positive values.

Using a calorimetric method enthalpies of mixing of the binary systems of methylmethacrylate with acetonitryle, hexane, benzene, 1,2-diclorethane, and acetic acid at 293 K and atmospheric pressure have been measured. The concentration dependences of enthalpies of mixing were correlated by polynomials