Solubility in the NaNO3 -NH4 NO3 -KNO3 -H2 O system
Solubility in the NaNO3-NH4NO3-KNO3-H2O four-component water-salt system was studied for the first time at 25, 40 and 60°C. The crystallization boundaries were determined for individual constituent salts, the double salt 3KNO3 · NH4NO3, potassium nitrate-based solid solutions, and ammonium nitrate-based solid solutions. The reported experimental data have been used to optimize a circular isohydric process for preparing potassium nitrate involving additional salts.
circular