Which separation techniques will you apply for the separation of Ammonium chloride from a mixture containing sodium chloride and ammonium chloride.

To separate ammonium chloride from a mixture containing sodium chloride and ammonium chloride, several effective methods can be applied based on their distinct properties. Sublimation is viable as ammonium chloride sublimes at about 337°C while sodium chloride does not. Heating the mixture allows ammonium chloride to sublime, leaving sodium chloride.

Crystallization capitalizes on the solubility variance. Dissolving the mixture in water, ammonium chloride shows higher solubility than sodium chloride. Upon cooling, ammonium chloride crystals form, separating from the less soluble sodium chloride.

Selective precipitation adjusts the solution’s pH to selectively precipitate ammonium chloride. Adding a reagent that reacts with ammonium ions precipitates ammonium chloride while leaving sodium chloride in solution.

Distillation exploits the distinct boiling points. Ammonium chloride’s lower boiling point (sublimates at 337°C) allows its vaporization and condensation while leaving sodium chloride behind.

The chosen method depends on efficiency, purity needs, and equipment availability, ensuring effective separation of ammonium chloride from the sodium chloride and ammonium chloride mixture.