Liquidus curves of NH4NO3 (aq) calculated from the modified adsorption isotherm model for aqueous electrolytes

The Stokes-Robinson modification of the Brunauer-Emmett-Teller (BET) adsorption isotherm is used to calculate the liquidus curve of NaNO3 (aq) including the eutectic point and metastable phases. The method described here represents a simplified approach to predict the liquidus curves with sparse information and considers the presence of several crystalline solid phases of NH4NO3 .