Liquid density of biofuel mixtures: (Dibutyl ether + 1-butanol) system at pressures up to 140 MPa and temperatures from (293.15 to 393.15) K

► New density data for binary mixtures of (dibutyl ether + 1-butanol) are reported. ► The pressure and temperature intervals are 0.1 to 140 MPa and 293.15 to 393.15 K. ► 445 Data points measured at five compositions were fitted to a Tait-like equation. ► Excess volumes have been calculated from the experimental data. ► The isobaric expansivity and the isothermal compressibility have been derived.