Densities and partial molar volumes are needed to calculate the size of aqueous aerosols, and the Kelvin effect on equilibrium vapour pressures above very small droplets. On this page we make available models that predict the volume properties of pure aqueous solutions and liquid mixtures (1, 2). Their characteristics are as follows:
(1) S. L. Clegg and A. S. Wexler (2011) Densities and apparent molar volumes of atmospherically important electrolyte solutions. I. The solutes H2SO4, HNO3, HCl, Na2SO4, NaNO3, NaCl, (NH4)2SO4, NH4NO3, and NH4Cl from 0 to 50 °C, including extrapolations to very low temperature and to the pure liquid state, and NaHSO4, NaOH and NH3 at 25 °C. J. Phys. Chem. A 115, 3393-3460.
(2) S. L. Clegg and A. S. Wexler (2011)
Densities and apparent molar volumes of atmospherically important electrolyte solutions. II.
The system H+ -
H2O from 0 - 3 mol kg−1
as a function of temperature and
H+ - NH4+ -
H2O from 0 - 6 mol kg−1
at 25 °C using a Pitzer ion interation model, and
NH4HSO4 - H2O and
H2O over the entire concentration range. J. Phys.
Chem. A 115, 3461-3474.