Volumetric properties of some binary liquid systems: n-Heptane + Aromatic hydrocarbons between 303.15 and 323.15 K

► Density is measured for n-heptane + toluene, + o-xylene and + mesitylene between 30 and 50 °C. ►Different properties and their excess values are fitted to appropriate polynomials. ► Dispersion forces and/or geometric fitting etc. are suggested to dominate.