Densities and viscosities for correlative system of dimethyl carbonate at different temperatures

Densities and viscosities of the binary mixture of (dimethyl carbonate + methanol) at the temperatures interval (293.15-323.15 K) and of (dimethyl carbonate + chlorobenzene) at the temperatures interval (293.15-343.15 K) were determined under atmospheric pressure by using a vibrating U-shaped sample tube densimeter and Ubbelohde suspended-level viscometer. Density values gotten were used in the calculation of excess molar volumes and the gotten viscosities were used for the calculation of the viscosity deviations. For (DMC + methanol) system, the excess molar volumes and the deviations of viscosity are all negative and for (DMC + chlorobenzene) system, the excess molar volumes are positive and the deviations of viscosity are in the vicinity of zero. Excess molar volumes and deviations of viscosity were correlated with Redlich-Kister equation respectively. The standard deviations were lower than 5%. The results show these two systems can be regressed by using R-K equation.