Collect. Czech. Chem. Commun. 1983, 48, 2130-2140

Saturated vapour pressures of the ternary system urea-ammonium nitrate-water

Jiřina Hejtmánkováa, Lidmila Bartovskáa, Marie Šiškováa and Lubomír Jägerb

a Department of Physical Chemistry, Prague Institute of Chemical Technology, 166 28 Prague 6
b Research Institute of Inorganic Chemistry, 400 60 Ústí nad Labem


Saturated vapour pressures of the ternary liquid solutions of urea and ammonium nitrate in water were investigated by the isopiestic method at 15, 25 and 35 °C. The measurements were carried out within the concentrations that are measurable by means of the NaCl standard solutions (i.e. up to the NaCl molality 6 mol/kg). The experimental data are correlated in terms of isotonic solutions of the urea-water and ammonium nitrate-water binary systems.