benzene

The threshold value of the energy required for the decomposition of benzene after the cessation of cavitation has been established. The regularities of the oxidative destruction of benzene in the cyclic mode "cavitation-exposure" were established. The possibility of destruction of benzene in case of initiation of the process by introducing a certain amount of its cavitationally activated part into the water-benzene medium is shown. The role of oxygen in the cavitation decomposition of benzene was experimentally confirmed.

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.

Reciprocal solubility of gasoline and gasoline fractions in ethanol depending upon the aromatic hydrocarbon content in them has been investigated. Conditionally the ternary system “paraffin-naphthenic hydrocarbons–aromatic hydrocarbon–ethanol” demonstrates a bounded solubility with two pairs of the components. Ethanol solubility in hydrocarbons is only 1–3 %. The hydrocarbons solubility in ethanol depends upon water content in it and the temperature.

Densities and excess volumes of the binary systems of lauryl (dodecyl) methacrylate with hexane, benzene, 1,2-diclorethane and acetic acid have been measured as a function of concentration, at 293 K and atmospheric pressure by pycnometric methods. The calculated excess volumes were approximated by polynomials.

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

The enthalpy of mixing for the binary systems of the laurylmethacrylate with hexane, benzene, 1,2-diclorethane and acetic acid have been measured as a function of their composition, the temperature of 293 K and at the atmospheric pressure, by the calorimetric methods. The concentration dependences of the enthalpies of mixing were correlated by polynomials.