Temperature dependence of the excess molar volume of (dimethyl carbonate, or diethyl carbonate + toluene) from T = 278.15 K to 323.15 K

The experimental densities ρ and excess molar volumes V m E of (dimethyl carbonate + toluene) at the temperatures (278.15, 288.15, 298.15, 308.15, 318.15, and 323.15) K and of (diethyl carbonate + toluene) at the temperatures (288.15, 298.15, 308.15, 318.15, and 323.15) K were determined using an Anton-Paar DMA602HP densimeter. For (dimethyl carbonate + toluene) the excess molar volumes were positive over the whole composition range and at all temperatures. On the contrary, for (diethyl carbonate + toluene) the excess molar volumes were negative. The experimental data were used for the calculation by analytical differentiation of the following quantities: the cubic expansion coefficient, the excess cubic expansion of coefficient, ( ∂V m E / ∂T) p and ( ∂H m E / ∂p) T .