The present work reports valuable experimental high-pressure density data for dimethyl carbonate, diethyl carbonate, n-alkanen.. The experimental density values were compared with experimental information available in the literature. While the volumetric properties for (dimethyl carbonate + n-alkane) were reported inmany works, the (diethyl carbonate +n-alkane) were less studied the available experimental information about the thermophysical behavior of this kind of mixtures,which is useful in the fuel field. The experimental density data were correlated using a modified Tait equation and were predicted by Nitta–Chao group contribution model.