Fluid Phase Equilibria publishes high quality papers dealing with experimental, theoretical and applied research related to equilibrium and transport properties of fluid and solid phases.

The fluid phase properties of interest include: PVT, enthalpies, heat capacities, Joule-Thomson coefficients, Gibbs and Helmholtz energies, chemical potentials, activity and fugacity coefficients, critical properties, chemical equilibria, multiphase equilibria and interfacial properties, thermal conductivity, viscosity and rheological properties, and diffusion coefficients.

A wide range of pure and mixed fluids may be considered: non-polar and polar small organic and inorganic molecules, ions, metals, polymers, surfactants, ionic liquids, gas hydrates, complex and biological molecules (e.g. proteins).

Papers only dealing with experimental data on viscosities and/or densities and/or speed of sound and/or refractive index and/or surface tension of liquids or liquid mixtures at atmospheric pressure and temperatures close to room temperature will be refused unless they are accompanied with new theory.

Theoretical techniques may comprise: chemical thermodynamics, applied statistical mechanics, molecular physics, molecular simulation, quantum chemistry, applied mathematics.