Make concentrated solutions of ammonium nitrate and urea, mix them and add conc. hydrochloric acid. Let the reaction complete for 10 minutes and cool it down to 0°C, filter the solution, wash it and dry the crystals.
Urea nitrate crystals
Urea nitrate crystals are filtered off and the solution is cooled down in a freezer until all of the urea nitrate crystallizes out.
All of the urea nitrate has been precipitated by cooling the solution down by freezer.
Recrystallization of urea nitrate. Dissolving urea nitrate in water.
All of the urea nitrate has been dissolved into water.
The purified urea nitrate has been crystallized out of the solution by cooling it down by freezer
Urea nitrate drying on paper